early 392 hemi crankshaft early 392 hemi crankshaft

Whether its a Barracuda, Charger, Road Runner, Coronet, Challenger, GTX, or another American Muscle Car, HEMI haines can bring it back to its original glory with a restored HEMI Engine that runs like new. "good" crank, offset-grinding down to the big-block Chevy's 2.20-inch size and using On the other hand, it can be hard to find a virgin early Hemi ). We currently have several types in production for these engines. that a dual-pattern cam isn't really needed. This is a very important piece. Hot Heads converts these pumps to be a direct bolt on and upgrades them to use a chromoly driveshaft. BH 331-FTL - 1951-1953 331 Chrysler ( Extended Block or Bellhousing) to Ford "Top Loader" 1964-1978. Picture Information. Tons of great info! As such, tracking down parts for these engines can be a chore. Install the front and rear end seals on the oil pan. The late 1954-56 331 & 354 are considerably more expensive, and 1957-58 392 prices are very painful. this to be remedied by early next year. Most people leave it this way. Notice the stampings on the bottom of the oil pan rail. It should has a feeling that it is tight going in. leading supercharger outfits, including Blower Driver Service, Dyer's Blowers, Littlefield, The BH 331-350 adapts the 1951-1953 331 Chrysler ( Extended Block) to the Chevy "Muncie" transmission bolt pattern and is designed to use your stock 331 flywheel and starter and a hydraulic throw-out bearing. This thing is under 490lbs. Popular on race cars, street use remains controversial due to aluminum's finite fatigue The original starter plate is required (#1613713 or equivalent). A experienced engine builder knows that not all camshaft lobes are symmetrical. Bore the small end to lbs. The camshaft is always installed first because, if it will not turn and you have to make corrections or even take it back to the machine shop, it is a lot easier at this point. Each rocker arm stand has a locating dowel. Always use thread sealant on the pipe threads and red loctite on oil pump mounting bolts. I'm having a hard time finding anyone who builds a crankshaft for them. A Eddie Haines Hemi will exceed your expectations!!!! Experienced tech writer, and all around car aficionado, Don's love for both cars and writing makes him the perfect addition to the Power Automedia team of experts. thick-wall aftermarket block. This is how it should look now. engine now for the street to prove it." Dodge up and offers good trimetal main and rod bearings in standard and up to 0.040 inch under Livesey prefers this design over many screw-in freeze plugs. The dual valve springs are 1.437 inches OD, 409 lbs/in rate, with a 1.050-inch bind height. This raises the zinc and phosphorous levels to a more safe level. The MSD distributor is advanced at 33 degrees. Now that its delivered, the blown Hemi will add nostalgic flare and street racing demeanor to a hot rod, while giving it impressive, yet streetable, performance. rebuilt, the small ends rebushed, the beams polished, and the assembly fitted with modern Always have 30w oil in the hole at least or ARP assembly lube on the threads and especialy under the head of the bolt. This will accelerate ring wear is just a few moments. Headers By Ed offers exhaust flanges and They go very high. center to center, this 0.200-inch-shorter rod is widely available, inexpensive, and uses a I prefer the three step of torque sequence theory. This can be solved by bushing the back in the day," McKray points out. valvetrain) -1/4-inch tips at the rocker-arm ends. won't be right. Now with the compressor out of the way, I can tap it the rest of the way down in the bore until it hits the bottom of the crankshaft journal. 392: 1673755: 3.910: 2.6875: 2.375: Early Hemi Crankshaft - Specifications; Engine Displacement Range Main Diameter Range (inches) Housing Bore Diameter Range (inches) Rod Journal Diameter Range (inches) Rod End Diameter Range lifter bores. As far as the heads, we will assume that they are back from the machine shop with hardened exhaust seats installed, milled for flatness, stainless steel valves, updated guide liners, performance valve job and installed heights and seat pressures are correct. You may have to clearance the oil-pan rails and the bottom of the cylinders to use Now, the fun begins. Contact the seller. 1.090-inch pin bore are needed as well. Hot Heads stocks shorty, universal-block-hugger, They are different everytime. I prefer file fit. hydraulic- or mechanical-lifter-paired assemblies complete with the proper links. At 1 time it was relatively inexpensive to build an early Hemi compared to a 426, but today in some cases the early parts are the . I start with the first pushrod and rotate the crankshaft over until the camshaft lobe for that particular pushrod is facing down and spin the pushrod freely. Weiand supplied the dual-carb adapter plate. The springs and locks come from Comp Cams. The adapters are already attached to the timing cover. Either way get them on. Four-bolt caps on the center three bore the 354 0.062 over. 5/16-inch tips on the lifter ends and (to maintain compatibility with the stock upper So my question, I have the option to buy a early 392 Hemi. fail first. (but still commonly available) rod. Using a Mopar 318/340 small-block's neutral-balanced damper is a Keep it straight and do not force. factor to allow for journal cleanup.) Rods and Pistons After installing the timing cover, I would check the top dead center against the balancer just to know that it is right. McKray considers them "optional on This has just been a general guide to building an early Hemi. I haven't done so yet because I had no idea how much to start the bidding at. Exhaust: Reputedly, truck manifolds (identified by their four-bolt (Product Sheet Download). gamut from stock cast replacement-style (Egge, Hot Heads, Kanter), to Keith Black cast So Im in the market for a new, or good used. Once you have them all down, wedge a stout screwdriver between the block and crankshaft throw weight and force the crankshaft toward one direction. The difference is the early Hemi early Hemi bolt-ons. Crutial during initial start up. These are usually the ones with the oil hole in them. Good Vibrations Motorsports stocks Zoomie Headers for Funny Cars & Dragsters! All of our Hemi adapters come with the option of 1/2" crank bolts. I do this by using a dial indicator. STALL TORQUE CONVERTER (ZERO BALANCE). Manufactured in-house at our San Diego, CA facility. For the Chrysler A 727 Torqueflite (i.e., 318, 340, 360 bell housing pattern). If we don't already know if the oil ring is a standard oil control or light oil control, here is a simple way to tell. Crane and Hot Heads sell complete, dedicated early Hemi The dual valve springs are 1.437 inches OD, 409 lbs/in rate, with a 1.050-inch bind height. Blocks Line up the rotor in the cap with the number one spark plug wire and install. Intake Manifolds: There was once a heavy factory 2x4 intake for dual To make the rods even stronger, they are shot peened which also increases fatigue life. aluminum rods; be careful not to run into the water passages. Molnar Technologies H Beam Chrysler Gen 1 392 rods are machined from billet 4340 steel, and then heat treated to provide improved strength. Now, we wipe the backside of the main bearings clean with lacquer thinner to remove all contaminates. The 1951-early 1954 motors with the integral bellhousing are the cheapest and most difficult to deal with. engine builder and head porter; Gary Patrick of RockerArms.com Before we clean the engine for final assembly, I suggest that all holes in the block are tapped. Always remember that the connecting rod always faces the numbers toward the outside of the block or the exhaust side. Other services include correcting geometry . Before you lower the crankshaft into the block, make sure you apply a small amount of oil to the knurled portion of the crankshaft where the seal rides. I am a bit new to Hemi's. hemispherical combustion chamber was superior to other designs. Hemi-headed aircraft and tank engines for the war effort. All Molnar 392 connecting rods are fitted with highly durable premium bronze bushings for use with . Your choice will be saved for one year. A- symmetrical lobes have a slower closing speed to avoid valve bounce. In my book out later this year, I will show you how to check each and every lifter to verify it spins in their bores. These are sold .005 oversize so you can hand gap the clearances. Custom JE pistons feature a .162-inch dome height, weigh 591 grams each and provide a final compression ratio of 9:1. The thermostat and front water outlets for the heads also came from Hot Heads. We want oil control on the street for sure. You'll need some sort of exhaust system These are Basset Boat Headers. If You can download the product sheet here: This adapter uses a modified small block Chrysler transmission case. Unbeefed production blocks have adequate strength for normal (formerly Rocker Arm Specialist); and Bob Walker, owner of Hot Heads, your complete one-stop Match this number on the degree wheel to the cam card. With that in mind, Borowski worked out a game plan that would provide sharp throttle response and horsepower in the 650 range. It can have it's issues. K&P OIL FILTER, NO BYPASS, MACHINE FINISH. This is a long process and must be correct. Patterned after the OEM iron manifold, our cross-over is lightweight, attractive and accepts Chevy thermostats and housings. I use CMD extreme pressue lube #9 on the pushrod end going into the rockerarms. Chevy 0.990-inch piston pin and Chrysler's 0.984 pin is easily accommodated with a slightly Be sure that the nuts are tight before doing so. Chrysler created a modern version of the 392 (6.4 L) Hemi. performance, nothing beats tube headers. And while you can bolt a LA bellhousing up to the early Hemi, there's a lot of grief involved in getting it right and even more if you don't. brand-new motors. It consists of an adapter plate, a crankshaft hub spacer and a flex plate or flywheel. Finish up the wiring and lets get ready to start this up. Now we wash the block inside and out with Dawn dish detergent. With only 5/16-inch oil return holes in the heads, the oil pan Bearing availability was once a problem, but now King Bearings has stepped The trick is finding one that's not cracked. Mocking up the spark plug wires. Race-only aluminum blocks have been developed (as in the Donovan If you look closely, under the intake and to the left of the distributor cap, you will see the PCV valve. 27-1/4 inches; Chrysler (without integral bellhousing), 28-3/4 inches. At the end of the Smith Brothers5/16-inch-ODpushrods areTitanbillet rocker assemblies. If installed incorrectly oil will surely leak right pass and you'll be mad. My reason is because I apply a small drop of silicon to the mateing edges of the rear main seal to prevent leaks. All the techincal information, step by step assembly procedures will be covered in my comprehensive book due out later this year. Do all 16 at this time in this sequence. Just about every bolt on a early Hemi engine enters into a water jacket, except the oil pan and the head bolts. usage--about 400 to 500 hp on a 354, 500 to 600 on a 392. This is a 354 Hemi block. The rear water-outlet ports on the back of both heads are blocked with billet adapters. Some racers say the nonadjustable hydraulic valvetrain is stronger interchange in the block, and the engine will even start up and run, but the timing events I was on hot heads site, and didnt see any options for new crankshaft. Available with starter on either side and with or without Buick/Olds/Pontiac bolt pattern (392-350ATBOP = Auto adapter with BOP pattern) Use thread sealant on all threads, a thin bead of silicone on the gaskets and torque to correct values. compression due to the Hemi's dome profile." Therefore, if early Hemi hydraulic It can bush the stock rockers and hard-chrome the shafts for severe use. In increments of coarse. Like the 6.1L HEMI engine, the 6.4L/392 HEMI V8 engine uses Hypereutectic pistons (with oil squirters to reduce heat) and a floating pin. I use BEST brand instead of Fel-Pro. And are pistons available? They do differ from one another sometimes. Adams maintains. Other than boost referencing, they are out of the box with jet adjustments for tuning. Power (hp) 300 @ 5200. big-block Chevy-style rods and rod bearings is a popular option. the block and crank are std. The appearance of the HH block is actually nicer. One thing to watch for If it is less it will tick. Hot Heads will sell you modern rods with the Now, check the closing against the cam card. For fabricators, Hot Heads The engine makes peak power horsepower at 6,000 rpm with 10 psi of boost. The pistons are barrel ground with the widest dimension above the lowest point of the skirt but below the oil ring groove. A bad connecting rod maybe but not the block. So, if my final torque value is 75ft. The Hemi started and ran flawlessly!! Turn the crankshaft in a clockwise direction and allow the lifter to lower to its lowest position in the bore and zero out the dial. Torque all to 25ft. I prefer the fixed bore ring compressor. It robs a little power from the engine because it is a immediate drag on the cylinder walls, but it won't smoke. 82), in the early Hemi's case, a The BDS supercharger was another customer-owned piece that had recently been rebuilt. $59.95 I clean the cylinder bore one more time with lacquer thinner and a white paper towel, then quickly coat the cylinder wall with a fine coating of GM's EOS assembly oil. With the supercharger set in place, attention turns to what was going to top it. This ensures the bolts will give accurate torque readings instead of binding prematurely. In fact Livesey beleives the engine may need to be jetted even leaner due to the altitude to maintain the desired throttle response. modern aftermarket options. If putting a huffer on it, hold compression Rear main seal for 354/392 Chrysler Hemi. IN. Only torque to correct value once both rods are in the same journal. For the scoop on first-gen Hemis, we consulted Gene Adams, one of the pioneers of early I find most of the time it is a bearing out of round. This eliminates scuffing. 727 ADAPTION KIT PRICE: $ 385.00 I use Valvoline Racing oil 20w-50 It has a higher level of Zinc required for flat tappet camshafts. 331/354 cranks won't interchange with the 3.906-inch stroke 392 crank, which has larger main and rod journals. If you try this, make sure that the gaps are at least the minimun and are square and break the edges with a stone so not to scratch the wall. It's attached to a powdered metal I-beam connecting rod with a cracked cap design (eliminates the possibility of reversing or interchanging the rod caps). then go to 50ft. Just about every bolt on a early Hemi engine enters into a water jacket, except . All production parts fit, including oil pans, Remember, alternative rods require rebalancing the engine these blocks over the old production castings. To ease installation, loosen all nuts and make sure all threads move freely. making it harder to package in increasingly streamlined engine compartments. All stock early Hemi rods are forged steel with 3/8-inch bolts and The 440 rod has a wider beam, so either the journal must be ground wider Head studs 1/2 Lifter bore .904 (std) Std cam location, Std cam diameter This is an aluminum replica of the 1st generation HEMI 354, 392 etc with a main cap girdle built in, which is loosely based on the LA small block ( or the other way around ) Old- 392 First generation Hemis have floating wrist pins. balanced. Don Creason is an automotive journalist with passions that lie from everything classic, all the way to modern muscle. If confused, "Buy the book". We've been making Early Hemi adapters longer than anyone else in the business and there are more "Wilcap" adapters behind Early Hemis than any other brand. The engine was filled with eight quarts of Brad Penn 15w40 high performance engine oil. Before doing so, You must align the intermediate shaft correctly so your rotor lines up where you want the number one sparkplug wire to be installed in the cap. of this old-school stuff, anyway. Complete carb to pan. Hot Heads solves that problem with an adapter kit mount a big-block Chevy water pump. usually a good fit with these combos. mains plus added metal in the main web area and lower cylinder walls greatly strengthen Donavan Cast Aluminum 392 Hemi ? Id like to know what kind of coin itll cost before we strike a deal. Adams says the best early Hemi supercharger manifolds are exclusively Hilborn Fuel Injection; Aliso Viejo, CA; 949/360-0909; HilbornInjection.com: Individual-stack mechanical and The adapter moves the starter to the passenger side. many small-block engines. $1,800.00 + shipping. A Steffs oil pan and modified Chrysler 340 oil pump provide lubrication. without pulling the distributor or the headers. The -1/4-inch pushrod cups in the rockers can be machined to 5/16, eliminating the need for There are upper and lower halves in the set. Add to Cart. Take the phone off the hook and come back. At a minimum, stock Carburetor jetting was adjusted towards the lean side with air fuel ratios in the 12.1:1 to 12.2:1 range at peak horsepower. I attach a fixed base dial indicator to the deck and lower the dial indicator so that it is in a straight line back down to the lifter. Go get something to eat and drink. degreeing the cam. and on and on. P/N 392-EFM Adapts the Early Hemi to the Ford 1932-1948 or Merc 1939-1950, Ford Truck 1/2 to 1 1/2 ton 1949-1953 transmission. *REBUILT HEADS - CORES REQUIRED. I have already installed the rocker arm assemblies onto the heads. *1951- '56 331-354 CU. Sonic testing has proved over end over this is not true. Are these for the early 392 Hemi or the newer poly motors that are advertised as hemis? were prone to failure. flat-tappet lifters are out of stock (check Hot Heads or Comp Cams), substitute widely The original 392 HEMI engine was introduced in the new 1957 model year Chryslers and Imperials. This is a machined main cap. I then give it a quick short blow in the center of the compressor and the piston/rod assembly has now entered the bore safely. DUAL WITH DAMPER VALVE SPRINGS, HARDENED VALVE SPRING RETAINERS, HARDENED VALVE LOCKS AND INSTRUCTIONS FOR SETTING UP THE HEADS. , and the rear flange bolts are threaded, best to skip it, If your search finds a used crank, and the rear flange bolts are threaded, best to skip it, chances are that was a race crank and subjected to some abuse during its lifetime, and run the risk of it being cracked or soon to be cracked. low-cost bearing. Early engines had long-snout cams and unique Walker says early Hemis "really like 10.0:1 compression. The Cloyes billet-steel, double-roller timing set comes with multiple keyways and is adjustable in 2-degree increments. Do not move it around and allow the gasket to move or silicone to get all over the place. If you have done all the work correctly so far you should be here and it look like this. Check out our Blown / Injected vintage 392 HEMI - Here's a little Start-Up vid to get you fired up. Though girdles and upgraded forged steel main caps are available for the early Hemi, this mild-mannered street/strip mill gets by safely with the stock cast-iron main caps. Put all bolts on their perspective holes and begin to bring them down. It consists of an adapter plate, a crankshaft hub spacer and a flex plate or flywheel. These tangs keep the bearing positioned latterly and does not keep it from spinning. I use copper RTV silicone under the seal to prevent any possible leaks. If you think that's ok, just click "Accept all". As soon as I feel the resistance I look down at the top of the lifter and watch to see the pushrod make contact and I stop. was to use a support girdle for the two-bolt caps in addition to filling the block with "With more than 0.500 lift, you need to consider an aftermarket exhaust arm," (each) Add to PartsList. concrete (or half filling them for street use). Here is a shot of the rear of that Hilborn EFI 392 Hemi. AUTOMATIC OR MANUAL TRANSMISSION ADAPTERS. Arias 4.750 Stroke Crankshaft Learn More. Your attention to detail borders on obsession or is that a passion for your love of all things HEMI. Do not be surprised if they weep a little water until they get hot and do their job, SEAL. I highly recommend Eddie Haines", Dewey Parks As Adams puts it, "Don't use bolts--use Everything swings on the stock 392 Hemi crank, which required no machine work. lbs. These cookies are not optional. The pre-'56 long snout version, the 56 and later version which had a short snout as seen above, and the 392 short snout version. Today, first-gen Hemis and their full-race Donovan 417 offspring live on in nostalgia fuel I mark the top and the bottom of the pushrods with a silver sharpie and rotate the bottom portion one full turn making it longer and lock it down with the nut. These trick pieces utilize O-rings to ensure sealing and locking tabs for secure fitment. BHJ offers cylinder honing plates. resurrecting these engines are new blocks and affordable aftermarket cranks, but we expect They also need lube to prevent dry start up. Yet another alternative is even stouter Until recently, the only water pumps readily available for the 392 Hemi have been a rebuilt versions. passenger-side lifter gallery. To install the camshaft straight up, advance or retard the camshaft using the several keyway crank gear until these numbers are exact. rear main rope seal, the new blocks will use widely available (and reliable) Ford FE One bolt hole is offset. Hemi unit, while Melling's high-volume 318/340 pump flows about 3.5 percent more. allow too much oil upstairs. The holes are drilled to a few thousands over the tap drill size for 1/2-20 NF. Early Hemi parts collection being sold as lot, sorry will not part out. The use of a hydraulic-roller camshaft did allow for Smith Brothers 5/16-inch OD, .120 wall pushrods. On the other hand I volunteered to buy a Winburg top fuel crank for Flashpoint. Use thread sealant also. Manual Transmission version for A-833 with Small Block bellhousing. Manufacturers such as Chrysler (FirePower Engine), DeSoto (FireDome Engine), Dodge (Red Ram Engine), and Plymouth were in aggressive competition during what is often called the "Horsepower Wars". Miller, GRP, or Venolia can, as Adams puts it, "make an aluminum rod any way you want it. " 146-tooth versions fit '51 to '56 engines, and 172-tooth units fit '57 to '59 engines. I'm saying that the lobes are not evenly spaced on the opening ramp to the centerline and back to the base circle. Vertex still sell magnetos; Vertex also has a pointless distributor that resembles its Ignition: Bolt-in pointless distributors are available from Mallory Setting the idle on Hemi number 56. Install the corrogated oil ring expander in the bore and see if it stays. Next we want to make sure we have adequate ring end gaps. Hot Heads offers adapters for installing Chevy V8 distributors. the street, mandatory for racing." It was part of a project that was purchased and he decided to sell the motor and keep the car. . Don't install then in oil. Integrity of the work was verified, and the only additional machining performed at Borowski was an align hone. A 354 or 392 can take 0.060 over. Clay is used to check for piston to valve clearance on both the intake and exhaust valves. I like to get it down on the cart, because from here it only gets heavier. You never heard of block failures on Early Hemis. The extended block has a round pattern that is similar to an S.A.E. I place a fixed base dial indicator up and rotate the crankshaft in a clockwise direction and stop short by .010 of the full stroke. rods should be shot-peened and subjected to magnetic-particle inspection, the big ends This is a shot of the .030" lifter preload needed for proper clearance. Test springs were installed on one valve in each cylinder head to perform this check. These rockers will bolt to either a stock Hemi or aftermarket heads and utilize an Allen-head adjustment. Choose what kind of cookies to accept. When installed, The oil seal should be flush with the front of the cover. or 392-350MT is for any manual transmission using a Chevrolet bellhousing originally designed for the iron block engines. I am the proud owner of a "Hemihaines" built engine. "The old-school Fueler guys used to make 1,200 to 1,500 hp on stock Hemi cranks Building a blown first-generation 392 Hemi for a 32 Ford hot rod is certainly a worthwhile project that will turn heads and shake the streets along a cruise. Apply ARP assembly lube to the threads and underside of nut and screw them on. A 55-tooth supercharger pulley and a 52-tooth crankshaft pulley result in a 5-percent overdrive, yielding 10 psi at 6,000 rpm. This adapter is 1 inch thick and uses the late model Chrysler V8 starter that bolts to the transmission in the stock location. Replacing your 50-year-old bolts bolts aren't too close to the cylinder wall, and they don't go into water. The Crower billet steel connecting rods measure 6.950 inches center-to-center. pattern found on industrial engines and uses a cast starter housing that bolts vertically to the engine. Melling has retooled early 392 Hemi that permit up to 4.310-inch bores. Starting with a 180-hp 2-barrel 331 with a 7.5:1 compression ratio in 1951, all the way to the impressive 380-hp 392 with dual 4-barrels in 1958. Also the 426 Hemi flywheel has the correct bolt pattern but does not register on the flywheel correctly and can't be used. This adapter kit contains the adapter plate, a crank hub spacer and a flex plate. hypereutectic (392 only), to shelf-stock forgings(Arias and Ross), to custom, made-to-order Reach up inside of the block and coat the cam bearing surfaces with the assembly oil. It is thick. You can see a small mechanicall guage I install on the top of the block in the rear next to the distributor, This is to monitor oil pressure during break-in. Maximum radii journals provide even load distribution. How you ask. The customer had owned the engine for several years, saying that it languished in another machine shop near the owners hometown in Wyoming. Torque to correct value. This may require opening up the pushrod holes in the If you are interested, email me. maintain adequate strength, McKray cautions, "Be sure to put in a good radius when turning This is to make sure that the oil goes through the oil filter before entering the block. You can pull the heads hybrid-tip pushrods when using later Chrysler lifters. The 331/354 and 392 cams physically 392 cams have a slightly different lobe orientation. Any of these cranks can turned by as much as 0.040 inch undersize. Offset-ground stroker combos using big-block chevy rod journal. These Molnar crankshafts are 4340 forged steel for superior strength and durability. There are so many little things neccessary to make this all happen. electronic fuel injection systems and intakes, HotHemiHeads.com: Aluminum heads and your one-stop shop for There are multiple sizes of pilot bearing bores and it is best to measure bore before ordering a manual transmission adapter. no guessing here. Clean both surfaces with a lint free paper towel and lacquer thinner for best adhesion. Following the correct firing order going in a clockwise direction, cut and make up the wire set and install them in the distributor and perspective cylinders. With a mild a hydraulic roller cam, a large diameter pushrod was not necessary for this engine. Both are bolt-on components so conversions and upgrades are easy. Heads is working on a 4.160-inch-stroke 392 billet crank that with a 4.035-inch bore yields Here is another Blown 392 Hemi. * 1957- '58 CHRYSLER HEMI PISTONS - SPECIFY BORE SIZE. New four-bolt conversion caps have made Added for 2015 was a Scat Pack Shaker hood option . Lay down a thin line of red silicone on the block's oil pan mounting flange, and do so on the top of the gasket also. *REBUILT ROCKER ARM ASSEMBLIES - CORES REQUIRED The list goes on and on. Its going in a 2,500-pound rat rod.. More on how to do this in the book by Hemihaines. I write this number down. You can increase a stock crank's stroke by offset grinding, which The issue is theres one really clean block, and no crankshaft. Catalog grinds include offerings by Comp (392 hydraulic Using a speed wrench, slowly tighten the bolts in a side to side motion, and move forward and backwards in an alternating pattern. If this is hard to understand, buy the book. Options with an (*) are required. Pickings are bearings, cranks, and front covers; externally, the blocks retain stock engine-mount If you have an HH block casting, go ahead and use it in good faith. Any help is greatly appreciated! If they do not sit flat down on the block, remove them and tap the locating dowel down and check again.