Classic Inlines has made arrangements with local shop that specializes in custom cylinder head work, and as such we now offer professional cylinder head porting, three angle valve jobs, and cylinder head assembly for our aluminum cylinder heads. When ordering a cylinder head which is to be ported or assembled please include as much information as possible, including the deck height, bore size, gasket thickness, C/R, desired RPM range, cam specs, type of induction, transmission, rear gear ratio, intended application (use), and any other pertinent information. All prices are labor only (parts extra) unless otherwise noted.

Includes surface milling the cylinder head and sizing the combustion chambers so the CC's of the cylinders are of equal volume, hence keeping the C/R equal. The higher the compression ratio is, the more critical this becomes.

Includes a light clean up and polishing, blending from the valve seat into the port bowl area, gasket port matching of both the intake and exhaust ports, multi-angle valve job, and cylinder head assembly. Springs, seats, retainers, locks, and seals are extra.

Includes Basic Street Porting above, plus fully radius'd exhaust seat profiles, sizing of critical areas for the specific engine build-up and rpm level. This enhances the air flow and velocity in street/strip applications, providing the best performance level possible.

Includes Street/Strip Porting above, plus fully ported and polished ports, contouring of the guide boss areas, fully blending the combustion chambers, and increased port cross sectional areas. Intended for race use only, maximizing wide open throttle.

"Maximum Effort" - Includes all of the work above plus modifications based on the specific application. Modifications may include relocation of valve seat pockets, the installation of larger valves and/or copper alloy seats, custom welding and build up of the ports, and so on. Achieve the full performance potential for your application.

They are currently working on an aluminum cylinder head for my 66 coupe, which will be naturally aspirated and raced in Open Comp. Eventually we will upgrade to EFI, and finally it will be supercharge with either a ProCharger, Paxton, or Magnuson blower. Our goal is to produce as much power as possible in each of the three stages, documenting the HP and torque and engine build specifications as we go. As soon as the head is completed and tested on the flow bench, we'll post the results in this section.

We'll also post results from some of the various cylinder heads completed for our customers, as well as pictures of the heads while they are being worked on and when they are completed.