4 bolt

[James90]

how do I tell if my block is a 4 bolt main

Go prepared

 

[BlazerGuy]

I think you have to pull the oil pan and just count 'em. It might also say what it is on the casting number.

YEEEEE HAWWWWW

 

[James90]

is there a code or some thing

Go prepared

 

[JimmyDie6.2]

you could look on the back of the block( drivers side ), and find the casting number. the number is directly behind the head on the block, slanted a little. You'll need to climb on there with a flashlight and a rag, wipe it down, check your number, then run the number. or you can drop the pan and count the main cap bolts. Having a 4- bolt block is very good, But remember, you don't really need it unless your making serious HP or torque, like over 350. JS

 

[nyyef]

i think if it is the original motor then it would be a 4 bolt. somebody correct if i am wrong, but i think i read somewhere that all trucks had 4 bolts mains caps.

Knife.