Join Date: May 2001
Location: Chattanooga, TN, USA
My 512 is a 427/2 bolt from a 69 Impala. I am building a Yenko Camaro Clone, and when I did my engine, I left the 2 bolt mains and cast crank, and 7" balancer.
I know the setup I have is adequate for the car (9.7 CR, 232 duration @ .050 and .540 lift-if I remember correctly)
But I'm having "restoration remorse"..... I wish I had rebuilt it more like the L72 engine. That's why I was thinking of changing it.
I bought a set of 4 bolt caps for $ 45, but sounds like I wasted my money. Can I use the center caps and either get an aftermarket rear cap, or do as oger says and reuse the original rear cap? Just a curiosity, does the rear seal become a problem when you use non-original caps?
Also, Big Gear Head, I know the dimensions on the crank are identical for 396 and 427, but CBN says the 427 has a wider counterbalance to make up for the larger diameter pistons. Can you use the 396 crank in a 427 without balance problems? If I do all this major surgery, I would definately get the rotating assembly balanced.
I know this is a lot of questions, but as you can see, I am no motor expert. I appreciate your advice.