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Porting ...

August 11 2017 at 5:31 AM
John  (Login jetstuff)
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Response to Edelbrock RPM porting...opinions wanted..long

I'd leave the floor alone, depending on the casting, you'll hit the pushrod tube holes sooner or later, I did my porting, then epoxied some thin wall brass tubing I got at the local hobby shop (also available online ) back in the holes. Be careful about making the pushrod holes in the manifold smaller, or you'll play hell getting the pushrods to clear the manifold.

I think this is the tubing I used, not sure if I had to open up the holes first, it's been a while ....

https://www.onlinemetals.com/merchant.cfm?pid=1551&step=4&showunits=inches&id=84&top_cat=79

Hope this helps, John

 
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