Napa aluminum brightner + power washer works wonders and isn’t too much work.Anyone use alumabrite (wheel acid)..to really clean these engines???
It was quite an advanced design when it was first made, and had a lot of very "racy" features for a mass production motor of its day. Nevertheless, it's rather outdated in 2020, so you are never going to make 150hp/l naturally aspirated like some Honda K series motors can with proper mods. But it's miles better than anything from a U.S. manufacturer from the same era. The valvetrain can be made to handle pretty high revs, but you won't make much power high up without other head modifications.Well, I guess this engine removal thread has now evolved into an engine rebuild/freshen thread. Overall, everything looks pretty good. There are some indications of PO attempting excessively to start a noncompliant engine as evidenced by some minor scuffing on the bearings crankshaft journals, pistons and cylinder walls. Polish crank, hone cylinders, and install new rings and bearings. Additionally, I checked the valve clearance and recorded the results. Can someone provide the specs for clearances on the intake and exhaust valves?
I must say I am well impressed with the design and construction of this little engine. Forged steel cank, beefy connecting rods, robust block and hemispherical combustion chamber design.coupled with a valvetrain which appears as though it would be incredibly stable at high RPM. (Huge potential for horsepower production) Are the pistons forged or cast? Where can I purchase rings and bearings at a reasonable price? Are upgraded rod bolts such as ARP available? If so, from whom? I may just go ahead and do some mild camshafts as well? View attachment 1638527
Any and all information is greatly appreciated,
No kits. There have been kits in the past, including a factory turbo kit for the Alfetta (same motor). I wouldn’t bother with any of the old kits. They are quite outdated at this point. Plan on some fabrication work.I am considering the addition of a turbo in the future. Is there anyone with recent experience in that area? A kit available? Nealric, thank you sir.