NOS Tightcase motor, 21mm PHBG
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The Tightcase motors were a really excellent motor for the money, back in the days when those cases were available. 

This motor was king before the GT-5L came along.

These motors have the same geometry as a PK-80 (short rod, type A piston).

the crankshaft is precision balanced at CR Machine.

Cylinder head is the 5.8cc Competition head which takes a 3/4" reach spark plug.

The intake is the old style plenum design.

This one has been sitting on the shelf for several years.

It comes with a properly configured, genuine Dellorto PHBG AS clamp on carburetor and malossi air filter with foam element.

Also includes:

Universal front mount (double u-bolt)

Extra main jets for tuning.

NGK B8EGV 3/4" reach competition spark plug. (the common alternative plug for this engine is the NGK B7ES or B8ES) (B7ES is a little hotter).

This engine is designed for use with a tuned expansion chamber exhaust.

This is a really cheap price, especially considering it's a genuine Dellorto carb.

 

 

NOS Tightcase motor, 21mm PHBG

Price: $499.00
Availability: Out-of-Stock
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