2 bolt and 4 bolt blocks

[danman6677]

I was just curious to know what series of trucks 1500,2500 or 3500 had 2 bolt or 4 bolt engines, Ive heard the Z71 option had the 4 bolts with windage trays?

 

[Tempted]

Its a crapshoot. There wasn't really a 4 bolt option. Z71 has nothing to do with engines, just trim package/suspension upgrades.

 

[DRAGGIN95]

Most 3/4 and 1 ton truck's came with 4 bolt block's, and most all 1/2 ton tuck's came with 2 bolt block's, but you can turn a 2 bolt block in a 4 bolt splayed block which is stronger than a stock 4 bolt block.

 

[skylark]

Most 3/4 and 1 ton truck's came with 4 bolt block's, and most all 1/2 ton tuck's came with 2 bolt block's, but you can turn a 2 bolt block in a 4 bolt splayed block which is stronger than a stock 4 bolt block.

X2 splayed is where it is at!

 

[Tempted]

Honestly a 2 bolt 350 is capable of handling a ton of power. I've ran 400hp 2 bolts without failure a few times. Of course we would all rather have the rigidity of a 4 bolt but there is nothing wrong with the 2 bolt. And as mentioned, a couple drilled/tapped holes and you have a 4 bolt.

 

[ls6firebird]

Honestly a 2 bolt 350 is capable of handling a ton of power. I've ran 400hp 2 bolts without failure a few times. Of course we would all rather have the rigidity of a 4 bolt but there is nothing wrong with the 2 bolt. And as mentioned, a couple drilled/tapped holes and you have a 4 bolt.

yea ive seen some guys put 400+ thru a 2 bolt on their mud runners. i dont know how they held as long as they did, but they did lol

 

[skylark]

I would do 500hp on a 2 bolt if it was balanced and kept under 6500 rpm. Some may call it the ragged edge though.