Auto Sport Engineering
34 Years of Porsche Service Exclusively
370 Hudson Road, Stow Massachusetts  01775  1-800-356-914-6

Home Up 911



Engine Rebuilding  911

A typical "Top-end" 911 engine teardown & rebuild takes 30 hrs on the bench. A bottom end rebuild takes about 10 hrs additional.

            (Photo of broken stud here)

A common repair needed with any 911 engine rebuild is the replacement of the cylinder head studs. The original studs are glued-in and must be heated with a torch to remove. The new studs are installed with Loc-tite & set to an exact height. Replacing all (24) studs takes an additional 6.0 hrs.

Removal & installation of engine takes 8-10 hrs depending on model.

Performance increases are best made while the engine is removed for other work. Larger pistons & cylinders may be installed, improved cams and/or a larger intake may be fitted as well.

Please click on the button above for a list of 911 engines rebuilt & ready to go.

Please contact Mark or Len for any questions you may have. is best viewed in 800x600 or higher resolution
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Last modified: 01/10/06