The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

jrcaprai · 03-25-2011, 11:18 AM

I had a 383 that dynoed at 430 HP and 465 Ft-lbs, it was not horribly expensive.
it had good parts in it, but only had a flat tappet hydraulic cam in it... it ran high 12's
I used a scat rotating assy with 5.7 inch rods, flat top pistons, Dart 200cc Pro 1 heads

in my opinion, if you are going to build an engine up to about 550 HP go with a Small block. if you are going to build something more than 550HP do a big block....

My current engine is a 408 Small block 550 HP... 500HP 383's are really easy these days

I am planning my next engine, which should be about 700 HP and it will be a BBC. 496 or 540

Don't forget about the weight advantage of a small block...

Chevy big block V8 685
Chevy small block V8 575
Chevy small block with Alum Heads 525

03-25-2011, 11:18 AM	#19
jrcaprai Registered User Join Date: May 2008 Location: Salt Lake City Posts: 365	Re: 383 Stroker Vs. 454 Big Block I had a 383 that dynoed at 430 HP and 465 Ft-lbs, it was not horribly expensive. it had good parts in it, but only had a flat tappet hydraulic cam in it... it ran high 12's I used a scat rotating assy with 5.7 inch rods, flat top pistons, Dart 200cc Pro 1 heads in my opinion, if you are going to build an engine up to about 550 HP go with a Small block. if you are going to build something more than 550HP do a big block.... My current engine is a 408 Small block 550 HP... 500HP 383's are really easy these days I am planning my next engine, which should be about 700 HP and it will be a BBC. 496 or 540 Don't forget about the weight advantage of a small block... Chevy big block V8 685 Chevy small block V8 575 Chevy small block with Alum Heads 525 Last edited by jrcaprai; 03-25-2011 at 11:20 AM.