2 or 4 bolt block

[airemdwn]

Is it worth rebuilding, machining and clearancing a 2 bolt block to build for a mild torque 383?

 

[Chevy305]

ya why not? 2 bolts are good to about 500hp. If you are going to be anywhere close to that then I'd do splayed main caps which is stronger than a factory 4 bolt

 

[b454rat]

I had a 468 that made bout 550 horse, 2 bolt main, cast crank, small bolt rods. Only need 4 bolt if you plan on crazy RPMs, turbo, blower or mucho N2O.

 

[79rustyk10]

If you plan on building something sane for low end torque, I wouldnt worry about it.

 

[cuervo]

The difference in 2 and 4 bolt blocks... you can sell the 4 bolt to some race head for extra cash.

 

[blazinzuk]

Yep the 4 bolt is only needed if you are going nitrous, or forced induction, or crazy high rpms.

2 bolt is just fine for a mild build

 

[4X4HIGH]

Yep the 4 bolt is only needed if you are going nitrous, or forced induction, or crazy high rpms or if you want bragging rights.

2 bolt is just fine for a mild build

There, fixed it for you.

 

[blazinzuk]

There, fixed it for you.

lol ain't it true though

 

[79rustyk10]

For the average CK5er, doesnt a 4 bolt main just mean more ARP studs to buy?

 

[cybrfire]

Isn't a 4 bolt main block mandatory for a 3/4 race cam?

 

[Mkuhn138]

I would leave it alone.