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For cylinder head info, contact jeff@aperaceparts.com

Cylinder head work at APE is done on the latest state of the art equipment. We have facilities to completely rebuild all motorcycle heads.

As a manufacturer of high performance cylinder head components, we have all of the parts in stock, from our bronze valve guides, stainless steel valves, valve springs, titanium retainers to compete your job without "waiting on the parts" that slows down most shops.


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The Serdi uses a mult-angle carbide cutter that has the seat shape ground into it. This ensures that all angles are exatly the same, all seat widths are exactly the same.

A perfect valve job.

HEAD PACKAGES FOR OTHER MODELS CAN BE PUT TOGETHER SIMPLY BY TAKING HW40 (BELOW), ADDING SERVICES FROM HERE AND ADDING VALVES, SPRINGS, RETAINERS AND GUIDES.


GENERIC FOUR CYLINDER 8-VALVE RACE HEAD

This package includes most four cylinder motors with four valves per cylinder. Price includes race porting and competition valve job, and assembly
NO PARTS INCLUDED**. Click here for the cost of additional services.

#HW40 - $985

**
VALVES
SPRINGS
RETAINERS
GUIDES
SEALS


STREET HOT ROD

Excellent power increase for small motors (up to 1075cc). This head uses the stock customer-supplied valves.

Includes
*Porting
*Competition Multi-angle Valve Job
*Cam Clearanced for APE K410 Cams.
*Bronze Valve Guides
*Racing Valve Springs
*Seals
*Assembled (not shimmed).

HW15 - $1150.00

SUPER GAS - Z1 / KZ EARLY STYLE

Approximately 15% more air flow than the STREET HOT ROD package.

Includes
*37.5mm Stainless Steel Intake Valves
*Shim on Bottom Titanium Retainers
*Porting
*Intake Valve Installation
*Competition Multi-angle Valve Job
*Cam Clearanced
*Bronze Valve Guides
*Racing Valve Springs
*Seals
*Assembled

HW17E - $1550.00

PRO GAS - J MODEL / GPZ HEAD

Good mid to high 8 second head.

Includes
*40mm Intake and 33mm Exhaust Stainless Steel valves.
*Porting
*Bronze Intake Seats
*Intake and Exhaust Valve Installation
*Competition Multi-angle Valve Job
*Cam Clearanced
*Bronze Valve Guides
*Stainless Steel Valves
*Racing Valve Springs
*Titanium Retainers (SHim on bottom)
*Seals
*Assembled

HW28L - $1995.00

For titanium valves add $105.00 ea.

SUPER GAS - J MODEL GPZ1100 HEAD

Approximately 15% more air flow than the STREET HOT ROD package.

Includes
*38.6mm Stainless Stell Intake Valves
*Shim on Bottom Titanium Retainers
*Porting
*Intake Valve Installation
*Competition Multi-angle Valve Job
*Cam Clearanced
*Bronze Valve Guides
*Racing Valve Springs
*Seals
*Assembled

HW17L - $1550.00


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APE offers damaged combustion chamber repair. This is a good way to save those high dollar race heads that may have dropped a valve, etc. 

We completely weld up the chamber, them CNC a new combusition chamber.  Damages seats are replaced with APE bronze seats.  valve job is completed and head will be ready to shim and install. 

Please note that this is a little pricy, and if your head is stock, it is probably cheaper and faster to find a used one.

From $500 +

ALL HEADS REQUIRE BENCH SHIMMING BEFORE INSTALLATION.
Tappets not included in head prices. WE DO NOT WORK ON HEADS THAT DO NOT INCLUDE CAM CAPS.
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