I am starting to think of a new combo, I see alot of you guys are running a 406. What are the advantages of a 406? I have a 386 stroker in another 89 iroc but this motor will be for a different car. Should i go with another 383 or should i go with a 406? Also how do you get a 406? (400 bored?) And does 350 heads bold onto the block with any problems? Thanks guys

 

Sorry I can't help you. But I would also like to know.
(I think its a 400 bored .030 over) But what do I know?

 

There's no replacement for displacement . That's the biggest advantage of the 406. The long stroke also helps build torque. Advantages over a 383 are aren't huge, but over a 350 substantial. And yes a 406 is a 400 bored .30 over.

 

Thanks guys for your help, but does the tpi setup fit on a 400. Is the head bolt angles the same as it is on a 350? thanks alot guys for your help. Thanks
BObby