The engine was a nice surprise. The seller had stated only that it turned. In fact, he could have listed it as zero miles on a total rebuild. The down side was that it had been stored for 10+ years since being rebuilt and, despite the ports being taped, there was surface rust on many interior surfaces.
I tore it down and cleaned everything. All it needed were new gaskets and seals. The bearings, rings, etc. were new. Even though the crank journals showed signs of wear, they were within spec.
The cylinder head was ported and polished along with the combustion chambers and rocker arms.
The overall condition of the engine suggested that it might have been an off-season rebuild of a low-time racing engine. The crankshaft center main showed the asymmetric wear typical of an engine run at high RPM's.
The cam was a new Crane regrind with 282° duration and 70° overlap.
Engine Specs:
- Bore: 3.241" (+.060")
- Stroke: 2.863"
- Displacement: 1548cc
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Compression Ratio: 9.41:1 |