how to acomplish 11 or more compression safely with 5.7 LS1 head?
#1
how to accomplish 11 or more compression safely with 5.7 LS1 head?
i want to port a set of LS heads myself. the 5.3 heads might be a little difficult to get them here in Kuwait but i can get the 5.7 LS1 heads easily. how safe i can go in milling the 5.7 heads and using stock 2.00"/1.55" valves maybe using 0.030" or 0.040" head gaskets and stock 346 short block (stock pistons). can i do 11 compression or more with no P to V issues? the cam is the latest TSP 233/239.
btw, what is the cc of the stock LS1 346 pistons?
thanks for help.
btw, what is the cc of the stock LS1 346 pistons?
thanks for help.
Last edited by Abdullah; 04-01-2006 at 10:16 PM.
#2
TECH Resident
iTrader: (22)
Without milling and knotching the pistons with that cam, I don't think you'll be able to get that high of compression. I'm running LS6 heads milled to .030, with cometic .040, -2cc on the pistons, G5X-2 232/240= 11:1 compression.
Use this and play with it and see if you can.
http://www.c5frc.com/calculators/Com...Calculator.htm
Use this and play with it and see if you can.
http://www.c5frc.com/calculators/Com...Calculator.htm