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Oldsmobile Aluminum Heads, BBO Edelbrock Performer RPM Air-Gap intake #7551 Oldsmobile Edelbrock Aluminum heads with a stage 3 from J&S machine shop with port matched Edelbrock Performer RPM Air-Gap Intake. I have another Oldsmobile motor with aluminum heads and intake already on it so selling these. Heads and intake never installed after machine work done. Intake is new never installed. $3200 located south suburbs of Chicago
Last edited by jeff84hurst; June 26th, 2020 at 03:37 AM.
that is a nice designed cam, and it would really make More power with some 1.7:1 or 1.8:1 rocker arms.
“assuming” that these numbers above from J&S ported heads and the numbers below are from benches flowing at 28 in-Hg, the J&S heads flow very well for the small Intake valve size. Sort of weird that the port stalled so exactly at the same big number though.
also, no verification on these to show calibration and what size bore/sleeve was placed under the head. The bigger the bore, the better the flow.
Same reason why big bore engines make more power than undersquare ones (455 olds)
Here is some stock flow numbers I found for the Edelbrocks:
This seems like a lot of really good parts that could make a great engine, I think you just need more good pics of everything that you are including in total. This looks like a great way for someone to build a hot street/mild race engine that could make very good power.
It sounds to me that you are including the following:
I took the pistons out cause I didn't have much info on then. They are ARIAS pistons. Stock rods and stock crank. It currently is sitting with crank installed, flywheel, .600 lift flat tappet cam, Cloyyes timing chain on an engine stand.
June 24th, 2020, 09:31 AM
