red 95 t/a

Im getting a set of 5.3 heads with brand new pac springs for pretty much nothing. I see that the combustion chambers are a lil bigger then my stock 706 heads. I want to just throw the 241s on it cuz the 2.00 intake valves over the 706 1.89 valve. what would the compression be with the 241s on the 5.3?

novaflash2002

iTrader: (51)

google compression ratio calculator. I use the one on kb-silvolite.com. I dont reccomend the 241s.... they have the thinist deck surface of all the ls heads

red 95 t/a

Oyea didn't know that. So just stick with 706s then