I haven't really seen this done very much, but the ones i have been able to get info on haven't made very much power. I have a 5.3 i was considering doing this with but i haven't been able to find much. Any input/suggestions would be awesome!

 

From what I've been reading on strokers, they don't make much more HP than the regular displacement. The idea behind a stroker is a whole lot more torque and a WHOLE lot more torque under the curve.

 

Well i realize that. but i meant the numbers i have seen aren't that much better than what my gen1 383 was making. has anyone done this with a 5.3 block? what kind of clearance issues might i run into?

 

I did this in my transam
I'll post up later more info when I get home

 

This is the engine setup

LS6 block, Callies compstar crank (4.125 stroke) , Lunati pro billet rods, Lunati forged pistons 3.903, Cleveite bearings, Total Seal rings, Rollmaster double roller w/ Torrington bearing, Ported LS6 oil pump, Comp Cams custom grind 246/252 .615/.625 110LSA, Comp “R” lifters, Comp hardened push rods, ARP head studs, TSP stage 2.5 LS6 heads w/ Platinum dual springs and Titanium retainers, Factory rocker arms, LSX 92mm intake manifold, PTM 92mm Throttle body, Factory fuel rails w/ 38lb injectors, factory coils with new GM wires and NGK TR6 plugs, GM water pump, ASP under drive pulley MTI carbon fiber "look" air lid, SLP bellows.
The car put down 515rwhp and 491rwtq

 

What was the cr on this motor?

 

Wow thats really good. I bet it made really good torque all along the curve. What did you have to do as far as notching the block to clear the rods?

 

Thats crazy talk!!! Thats like saying stock displacement 6.0 is better than a 408.

 

Just for a bit of future reference, you don't have to bore/stroke/bless these LS motors to get a lot of power from them. Unlike the 'ol famed small blocks, they're a hell of a leap in every way, i.e. virtually stock 4.8's making 650+ hp on higher-moderate boost. If you already know that, then just ignore what I'm saying.