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You can go completely stupid if you like. My 7 year project is a true RSR crank, custom Ti rods from crowler, heads done by *sheesh* been so long I can’t remember...but they have a cut down RSR intake on ovoid ports done by CNC. All the meat came out of the roof to improve the flow from turning direction. The old style RSR pistons, CR is like 11.6:1. Cams are 3.8 RSR on 101* Lobe centers cut from some GE100s. Less lift than the GEs, but more area under the curve than the sprint cams. Tightened up the LC to work with the 2.8L size. RSR rockers.
Still working on induction. Most likely going to end up using stock TBs rebuilt to as big as possible. Going to use the direct injectors in the stock location and hopefully end up on liquid propane. The DI injectors are ramped to several hundred psi and should easily deal with 200 psi to keep propane liquid in a warm engine bay.
Or going to use an early Mercedes in-line 6 MFI pump recalibrated to RSR spec.
Lots of time and money. But I think that is about as built as you can get a 2.8. Might get to 2.9 with the guys that make the aluminum cylinders. Forget their name as well.
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1967 912 with centerlocks… 10 years and still in pieces!
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