charlie97z28

iTrader: (2)

I have a stock bottom end 5.3 that I'm putting a torqer v3 cam and a potted set of 241 heads. My buddy i bought the heads from had them ported but didn't have the heads milled they were jus planed to ensure flat surface the porter messured them at 63 or 62 cc I read that the 5.3 are somthing like 58cc or there about. So should i have these heads milled to get the cr back close to stock or even a little higher or leave em alone. I am just worried about ptvc with the heads milled.

sepsis

iTrader: (7)

If your old heads (241's) are 64 cc and your new ones are 58cc, how will milling them bring the cr back to a stock 241 head cr?

charlie97z28

iTrader: (2)

The 241's are 63cc the stock heads on a 5.3 or around 58cc I'm putting the 241's on the 5.3

sepsis

iTrader: (7)

OHHHH....sorry, I misunderstood.

classic_speed

iTrader: (3)

Im looking to do the exact thing on my 4.8. Im wanting to cut them to 11:1 though. Subscribed for info!

wildcamaro

iTrader: (15)

I would get ls6 heads, that way you don't have to mill as much to try to get bak that compression...they will flow better too

fatlt1

iTrader: (4)

if u already have them then yes mill them down to about 59cc and slap em on. if u dont have them or didnt buy them yet then hold off and look at some 243's which can be bought for cheap these days and mill them down.