It will bolt up and work great...initially. there are several different designs for the Big Block chevy. Port shape is a variant as is single or dual plane. Now if this is going on a marine engine in a salt water environment I suggest a marine specific manifold that is brass/bronze lined in the water jacket. Salt water will eat a non lined unit alive. I would bring old unit to speed shop so they can come as close as possible to matching O.E. unit as possible.
to answer your question on post 7...the peanut port heads make ok torque and fall on their face by 4000 RPM and pretty much stop flowing at 4500. as compared the the better port velocity (read this as torque) of the L29 heads and they continue flowing up to 5500 RPM the L29 also have 100 cc combustion chambers and bring the CR up a a bit and the vortec combustion chamber keeps detonation at bay. GM did their homework on the L29 heads.
yes to your question in post 8. however I would have it modified for adjustable valve train if you want. if you keep the cam mild, ARP has adapter studs.
what are your goals?
I ask this because your peanut port motor is hindered by the cam that is in there along with the exhaust, and not the intake
I have a gen iv bottom end and already have the heads which will be going in a 250cc
i'm going to freshen up what I have. maybe a little tweaking on the heads possible
port polish see what happens
I have a gen iv bottom end and already have the heads which will be going in a 250cc
i'm going to freshen up what I have. maybe a little tweaking on the heads possible
port polish see what happens
yes just a refresh 4500 is plenty for me that use to wot on my small block 250 cuddy
what i'm in barking in is a total refab transom replaced stringers the works
never endeavored in this before looking forward to it
