Ls6 intake, long tubes,ported tb, 238 240 .602 .598 112 lsa cam, aftermaket y with GMMG, 3200 stall 4l60e 3.23 gear 3700 lbs.

Vengenace Tuned Dynoed at 350hp 360tq about 85 degrees out side.Thats with 853 heads.

Now i have a set of stock 243's im about to put on. What kind of HP can i expect?

 

20-30hp

 

Does 350hp sound right for the first setup? I thought those numbers were alittle low.

 

Sure the numbers sound low, but dynos can vary big time so it's hard to say for sure. My car made 55 more hp on one dyno over another with no mod changes whatsoever...and both were Dynojet dynos to boot lol

 

this is why you back up dyno's with track performance. Dyno's can be everywhere.

 

stock 243s with no milling or porting and stock headgasket thickness?

~15 rwhp through the stalled auto

 

No milling no porting. If I go with a thinner head gasket I'll have to shorten my pushrod length correct?

 

Depending on what those 243s came off of...you may have to shorten the P/R
anyways.....02-04 Corvette ZO6 heads have the hollow stem lightweight
valves which are .0236" longer to work with the factory .551/.547 cam

 

No hollow valves unfortunately. They didn't come off a zo6