Porsche 928 S3 Nockenwellen 4 Stück

Camshafts of S3 come closest to the very popular but extremely rare GT cams

These cams can be reworked to fit in a S4.

or even regrind to GT specs or used as they are.

928105291 3R E1-4
928105292 3R E5-8
928105293 2R A1-4
928105294 1E A5-8

S3's needed higher compression 10:1 pistons to compensate for their long duration cams which bleed off intake charge pressure