Thread: Torque

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Originally Posted by co68956

Wow great article thanks, I have been reading up on cams for about a half a year now and that helped alot. I'm not sure of my compression ratio, the motor is still in pieces, any simple way i could figure it without buying a bunch of expensive equipment?

Try to answer some of the questions you asked now others will have to wait.

TH-400 tranny, 411gears, I think the weight is around 4000lbs...its a 1967 C-20...the 454 was bored .060 to make it 468now

The heads are 427 heads oval port closed chamber tall deck...casting # on them is 10101140, i am gasket matching them along with taking down the short side radius, again not expecting big time ponys with these heads, there just what i have to work with, should make decent torque though

I did have a question about tall deck bbc's, any advantages or disadvantages to tall decks?

I am a first time bbc builder so the advice really helps, thanks guys!

i done short decks 9.800.the tall decks 10.200+ they work better with big stroke cranks 4.500+ you can get more rod in them .as for max tq with a flat top pistons and cheap cam look at 500/500 @050.215/225 lc 115 or 502/525@050.215/225 lc 112 i do not play with hyd flat lifter cam s in bbc any more. i been playing with them for 30 years.i build a hand full of them every year so i built many over the years . i use hyd rollers or solid roller cams if low buck look at GM #12551622 roller cam 483 224 @050 lc115 $40 for cam thru competition products. if you do not need a fuel pump lobe, is cam will not have one .. i have used this cam as well it is a cheap way out to a roller .you need a cam plate out of a gen 6 block use a gen 6 chain set and retro lifters it bolt on deal