Cull Enterprises Ltd.
Cull's Auto, Automotive Machining

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     Helping you with your repair or classic restoration.

tapered bushings are not so easy!
Lewis Tool
After modifying this set of 462 casting sbc heads for studs and plates we extend the push rod slots with a home made "Lewis Tool" to allow clearance for cams with over .500" lift. I have since found a source for the tool from Comp Cams #4710. Note: the hole below the one being done is completed, the slot is now about .050" longer.

Oil dispersant and CBX piston coating

Buick 455 Stage one with sunnen hone finished valve guides.

Cheverolet 250 with 2.20, 1.6 valves and screw in studsCheverolet 250 with 2.02 intakes and 1.6 exhaustsCheverolet 250 with screw in studsElongating push rod hole with a Lewis tool

Cheverolet 250 six cylinder head with 2.02 intake and 1.6 exhaust valves, Screw in studs and Sunnen honed bronze valve guide liners.