Here's my spreadsheet for 355 64cc chambers: 9.025" deck height.028" gasket stock compression height pistons piston dish/valve relief----compression 7cc -- 9.75 12cc -- 9.35 18cc -- 8.71 the cam, that's function vehicle weight, transmission type, gearing, intended usage.
Compression Ratio: 10.4 64cc Cylinder Head, 9.21 76cc Cylinder Head 55 bux cheaper set the domed Dan Timberlake, Jan 1, 2014. . engine have now, a 350 SBC with worked big valve 305 heads a good street cam, I run stock stall speed 3:73 gears. doesn't that "rumpity rumpity" sound .
The shop built 355 SBC told my setup 461 64cc heads about 10.25 compression. are flat top 4 relief pistons, may be same yours. . .030" 350 running camel hump 64cc heads, flat top pistons. compression ratio 10.25:1 I run pump gas, has be premium, I to .
Power: 260 HP @4300 RPM, 350 ft. lbs. torque @ 3600 RPM Displacement: 350 CID, 5.7L Bore Stroke: 4.00" 3.48" Compression Ratio: 8.5:1 Recommended Fuel: 87 Octane Block: Cast Iron, 2 piece rear seal, 4-bolt main caps Crankshaft: Nodular Iron Connecting Rods: Powdered Metal Steel Pistons: Cast Aluminum flat top Camshaft: Hydraulic Flat .
I the dreaded 350ci 290hp sbc crate motor GMPP. It's dog everything read to change cam raise compression ratio. don't all specs the motor figure compression ratio, I it 8.5:1 76cc heads. I'm wondering is, anyone me much compression ratio change going a 64cc a 58cc head. else .
I a '79 Malibu I bracket race a budget. now is 10:1 compression 350 all well good pump gas. I to open up freshen up (it have cracked piston) have look around. have K/B hyperutetic flat tops it with 64cc heads should yield 10:1 compression.
Hell, zero decked flat top 383 64cc heads over 11:1 compression. With 4cc dome, (the typical flat topped style dome is .100-.125" tall mimics old factory LT-1 piston the 350), used a typical .041" thick gasket a uncut block 383 still 11.55:1 compression.
Would to what size heads and compression now. 76cc heads 8.5:1 compression go easy 64cc heads end with 9.5 -9.7 compression. . "64cc combustion chamber about 9.2:1 compression ratio with stock pistons a 350. Includes 1.94'' intake 1.55'' exhaust valves." . have several .