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Old 05-29-2014, 07:36 AM   #1
scottofksu
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Join Date: Nov 2011
Location: Omaha, Nebraska
Posts: 431
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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