Go with callies cranks... mine weighed at 53# racemaster... the magnum weighed 48#... but it was a 2 peice rear... couldn't use it. but it was VERY nice...

 

are your kooks full 1 7/8 or stepped?

 

Or go the route I go.... get the forged crank and spend the time/coin to lighten it. I've taken a stock crank down to 46lbs, you can take mass off the crank if you know what you are doing.

Either way lighter is better.... it's the same reason why a TH350 is a tenth faster at the track than a TH400. They have basically the same ratios but less mass in the smaller TH350.

LR, Dave Vizzard did a great test on all of this in a PHR article late last year. You might want to check that out.

Bret

 

Yes, a heavier crank will give you more inertia which will help you launch. It's also why an aluminum flywheel is great for track racing, but not really that useful for a street/strip car. It all depends on the car's weight & environment.

I say forged. A few lbs. worth of crank won't make that much of a difference. W/ what you're doing I wouldn't consider the cast crank.

 

Bret, do you know what month that artical was in? I know I have the magazine, just can't find it.

Highlander, the Kooks are not stepped.

 

Got me but I know it was late last year. I'm thinking it was Pop Hot Rodding, but it might have been Hot Rod.

Bret