billc5

iTrader: (1)

Is this Head swap worthwhile on a C5.

Thinking of swapping the LS1 head for a stock LS6 Head and leaving the stock LS1 cam, the magnachager is pushing 6.5 psi currently and I would expect this to drop with the LS6 heads, and perhaps mill .020 for a 11:1 CR. I have a functioning alcohol setup to support the higher compression (I hope). I can also tune with the On-board Wideband and LS1Edit.

So is this a good idea or not?

mdhmi

iTrader: (1)

No. Not worth the bother.

If you want more power with the Maggie pulley it down with an RR pulley. Cool it with an ECS meth kit. If you get belt slip with the small pulley then upgrade to the ECS 8 rib kit.

Mark

billc5

iTrader: (1)

I am at 3.1 now with methanol injection, I was hoping that the increased compression would return a 5% increase in power. But if adding compression and flow wont help, I'll look elsewhere.

Thanks.

smokinHawk

iTrader: (48)

id put some truck heads on it (which have ls6 stlye ports) which will lower the CR about 9.6:1 then pulley up a little.
that would give you more power.

DeltaT

iTrader: (5)

Now if you got some hi-quality porting done first, then it would be worth the swap.

Jim

billc5

iTrader: (1)

Even if we port these head, can you quantify the improvement?
I would just like to here from someone that has swaped the heads only to know if there is any significant improvement.

like; power, fuel economy, detonation, etc.