well im building an l20b. Im just keeping the bottom end stock and rebuilding it.... Main bearings, rod bearings, rings, gaskets, hot tank, and new timing set. Then Im putting the work in the head.... l28 intake valves, port n polish, valve job, milling the head, bigger cam.... (not much bigger), bigger lash pads, shiming the towers, etc... Im running a u67 head for sure..... NOT A PEANUT.
A u67 head is the same as a sss head, u67 just has more flow. Only thing a peanut head has going for it is compression.
After motor im going bolt ons, Lightened fly wheel, offy intake, headers or l16 exhaust ( i have one of each), Weber 32/36.... only carb i ever run :rolleyes: . I already only run premium in the datsun, but thats not what i asked :rolleyes: . Can anyone answer the ?'s I needed answered?