blackfbird98

i have a set of 241 heads that will be replacing the 853's on my 2000 z28. my question is if i have the 241's ported and polished will they be sufficient enough to use with the ms3 cam i want? and also if i did use the 241's would i have to change anything internally to be able to use the ms3?

EricD

iTrader: (2)

the heads will be fine but you will have to change the springs and pushrods if the cam is any larger than stock, i dont know the ms3 cam but i am sure it is far from stock , if you are at .550 or less of lift you can use the stock LS6 spings that are a deal and a half , dont forget new head gaskets and new head bolts , Eric

SOMbitch

iTrader: (8)

You will need a PRC Gold dual spring or better.....

garygnu

are you getting bigger valves?get a good valve job also.you mite want to check you piston to valve clearence.get the correct length push rods.what rockers are you using?if stock get some compcam trunnion bearings upgrades.

blackfbird98

i would be building the entire car around the ms3, so what im asking is what would i need out of the 241 heads to make it match up well with the cam.

garygnu

the ms3 usually makes 10 hp more then a 228r.if you buy a TSP cam kit ,you get a cam,springs,and push rods.I would also look at a custom cam from Pat-G.If you know your head flow numbers Patrick will spec you a cam that will do a little better then a ms3.How old is the ms3 design?TSP dose custom cams.