Monteman1971 Posted December 22, 2010 Posted December 22, 2010 Maybe someone can answer this...... If I take a stock 118cc big block head and mill it .025, what does that make the combustion chamber now? Thanks, Steve Quote
wallaby Posted December 22, 2010 Posted December 22, 2010 My 119cc merlin heads gave an average figure of 1cc for every .007 removed. I'd guess you'd have around 114-115cc. Quote
Sam (Bones) Posted December 23, 2010 Posted December 23, 2010 watch your intake fit, take-off too much and you'll need to have the intake done too Quote
monte70car Posted December 23, 2010 Posted December 23, 2010 As Sam said about the intake been there done that got lucky and the local parts store paid to have my intake shaved the thickness of the intake gasket. Quote
Monteman1971 Posted December 23, 2010 Author Posted December 23, 2010 Those are my current cast heads and yes the intake had to be milled as well. I'm in the middle of getting myself together for my aluminum head swap and just wanted to see if the new aluminum heads that are 110cc's was going to change my compression ratio. Turns out the stock 71 big block heads are 113cc's. Which would mean they are also 110cc now. Oh..and eventually I'm going to try to sell my current manifold. It's an Edelbrock Performer RPM (not an air gap)that has been milled .030. Quote
71monteme Posted December 23, 2010 Posted December 23, 2010 Steve, i'm sure you already know, in case you didn't or forgot, you will need longer head bolts/ stud. and longer pushrods. thanh Quote
Monteman1971 Posted December 24, 2010 Author Posted December 24, 2010 Thanh, Thanks...Already ordered and delivered and waiting to be installed. Mike57 has been a big help in letting me know what I'm going to need....And Crazy Dave has also been giving me pointers...I love this group!!! Quote
AL M Posted December 24, 2010 Posted December 24, 2010 Its a Big Block conspiracy I tell ya...They're all scheming against me. lolol. Quote
CrazyDavey Posted December 24, 2010 Posted December 24, 2010 Its a Big Block conspiracy I tell ya...They're all scheming against me. lolol. the dark side is waiting for you my son.... Quote
Sam (Bones) Posted December 25, 2010 Posted December 25, 2010 Its a Big Block conspiracy I tell ya...They're all scheming against me. lolol. it's hard to argue with the results of a big block Quote
kc8oye Posted December 25, 2010 Posted December 25, 2010 al.. We can always set you up with a twin turbo small block to spank those big block's.. ask Eli what his monte runs in the 1/4 mile 11's letting of at the 1/8th mile... Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.