lemkerailroad

I am building a 383 out of my 2001 LM7 ENGINE and I am looking for advice on how much flow I can get from a set of stock head that are ported and polished

Any help would be great

Anyone have any numbers from a set that's been done

studderin

iTrader: (28)

1 million cfm

best heads ever

lemkerailroad

i am looking for help here as i dont know if i can get enough money together to get a set of AFR heads but if i can come close on these stock heads and if i can change out valves and seats then i may be in business

what is a good set / size valve and seats to use

sorry im old school and am learning on the GEN III LM7 the new ways to hot rod with FI

redtan

iTrader: (5)

A good start would be to actually tell us what heads you talking about?

lemkerailroad

stock aluminum, cathedral haeds that came with the 2001 5.3 ltr LM7 truck engine

have to forgive me but i dont have the casting # with me at the moment

Beau@SDPC

iTrader: (14)

We got mid 280s out of our CNC'd/LS1 Valve 862 castings.

http://sdparts.com/details/scoggin-d...center/sd8926c

Sales2@Texas-speed

iTrader: (5)

A little more information on what you want out of this combo would be helpful. Is it being built for a tractor pull, drag race , autocross car, boat, etc application? Also any information about the short-block (piston volume and the like) would be helpful!

We've got quite a few ported GM casting heads to choose from 5.3L's, LS6's, 6.0L's, and more!