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61Klassic · 09-24-2019, 09:15 AM

OK, so with the material in the head over the piston, has anyone tried using 4" pistons on a 4.125" crank and machining the head .125" and blending into the valve relief.
In theory this would allow compression to be kept high while allowing good flow up high in the chamber as opposed to relieving?

09-24-2019, 09:15 AM	#9
61Klassic Member Join Date: Jul 2019 Location: Kent UK Posts: 35	Re: 8BA Edelbrock head clearance OK, so with the material in the head over the piston, has anyone tried using 4" pistons on a 4.125" crank and machining the head .125" and blending into the valve relief. In theory this would allow compression to be kept high while allowing good flow up high in the chamber as opposed to relieving?