New Dilemma

[jeff's88silverado]

I've got a new dilemma I can build a 383 just short block which is flat tappet cam setup and 2 bolt main for about 1k. or i can buy a brand new gm production short block with roller cam setup and 4 bolt main. What should i do is their really a big strength difference between the two considering my 2 bolt main has held up fine for almost 300k. I want what will last the longest this truck aint going no where. I'm going to be running TBI and i'm not going over 400hp/450tq on the build

 

[DRAGGIN95]

I think in the HP level's you are going to be in 2 bolt block would be fine, but I would definitly convert to a roller cam, you will love the difference! Also if you want you could have your 2 bolt main block drilled and taped for splayed four bolt main cap's and they are super strong.

 

[jeff's88silverado]

ok what would be the gains of having the 383 over the 350

 

[97c1500]

ok what would be the gains of having the 383 over the 350

Awesome amounts of lower end torque due to the longer stroke

 

[DRAGGIN95]

Yes lot's more torque, we have 1 vehicle with a 400sb and the difference in torque from a 350 is amazing.

 

[Sully]

more torque, and after building it right, the motor itself is stronger. You could also see an increase in MPG since the truck wont be working anywhere near as hard

 

[jeff's88silverado]

That sounds great going 383 then