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05-29-2014, 07:36 AM | #1 |
Registered User
Join Date: Nov 2011
Location: Omaha, Nebraska
Posts: 431
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Preparing to Build! (Check my work...)
I am collecting parts to rebuild the 350 (soon to be 383) that will go into my 1965 C10 short bed. Below is my recipe; please, let me know if I am missing anything!
Machine Shop Trip #1 Clean Block Magniflux/Inspect for cracks I missed Bore as little as is necessary Deck-plate hone .00 Deck the block for use with a .038 gasket (was going to run quench/squish down to .030, but I chickened out) Measure crank, mains, and rods for bearings Home Clean out machining grit Paint Machine Shop Trip #2 Install Cam Bearings Press fit pistons Install Freeze and other block plugs File Fit Rings Parts 1974 4-bolt GMC block SCAT 3.75 Crank SCAT 5.7" Stock Replacement Forged Rods +12cc Dish pistons (H859CP30) Lunati 276/284 Cam (@50 = 233/241, .504/.525, intake opens at 68 degrees) Vortec Heads (exhaust ported and polished, intake and chambers cleaned up. Screw in studs and the LS6 behive springs (26981-16), new valves with 20 degree back-cut, 3-4 angle valve job, 64cc) HEI Distributor recurved for this engine Edelbrock Air-Gap intake Quick Fuel 780 CFM carb (HR-780-VS) These parts result in a static compression ratio of 10.33, and a dynamic compression ratio of 7.90. Advancing my cam 1 degree gets me to a dynamic ratio of something like 7.98. I will probably run the cam "straight-up" unless I feel the engine is underpowered, in which case I will advance the cam 1 degree. I will be running my SM420 to start, but will be upgrading to a TKO-600 as soon as possible... Gears will stay at 3.75 until I get the TKO, and then I may bump them to 4.11s. Thanks for any advise you can provide!
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Travis' Tribute Truck - 65 C10 Frame Up Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=495073 |
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