BrianC98Z28

iTrader: (11)

Ive been looking at the flow # differences, but what would that translate into HP wise?? Especially if I was to replace the stock 98 heads with them?? Anyone have any proven hp gains with the head swap?? Any info is appreciated.

Brian

LS1Formulation

iTrader: (13)

I would guess they'd be worth about 10-15 HP over LS1 castings, especially '98's like our cars have.

BrianC98Z28

iTrader: (11)

anyone else have any actual numbers or track time differences??

Evans752

iTrader: (29)

I went 11,91 with stock 241 and with stock 243(LS6) I went 11.77 and gained 17RWHP with 2002 LS6 Cam.

98camaroLS1M6

iTrader: (35)

10-25rwhp tuned of course depending on the size of your cam.

GuitsBoy

iTrader: (4)

I would say closer to 10-15 HP with equal tunes. And dont forget that a lot of HP is coming from the higher compression and double quench pads, not just the higher flowing ports.

cam1999

I swapped LS6 (243 casting) for my LS1 at the same time I swapped intakes too. I was unsatisfied with the increases. I regret not having P&P the heads.