This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly.
We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). Stage VI (1) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.14" intake valve, 1.81" exhaustĮdelbrock - Published numbers by Edelbrockī1-Moved Centerline - CNC full porting including combustion chambers, 2.4" intake valve, 1.You may return most new, unopened items within 30 days of delivery for a full refund. Stage VI(B) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.18" intake valve, 1.81" exhaust Indy SR(B) - Basic "full port" job, no chamber work by Dwayne Porter, 2.18" intake valve, 1.81" exhaust
Stage VI(A ) - Bare heads prepped by Dwayne Porter, valve job and very mild bowl blend only, no chamber workī1-BS(B) - Basic "full port" job, including full chamber port by Dwayne Porter, 2.20" intake valve, 1.81" exhaust Indy SR(A) - This is how these came from Indy, no porting at all, no chamber work Bowls blended, and intake ports gasket matched. Note intake Dimensions Std = 2.17 x 1.13 MW (max wedge) = 2.58 x 1.35ī1-BS(A) - This is how the head came from Koffels Place. From 1968-1978 were large valve, but were an open chamber design. The rare 1967 pieces were large valve, but closed chambered. Most heads from 1958-1966 had small valves and were closed chambered (except special pieces like the Max Wedge or 300J). This allow for very low compression, thus low heat.
Industrial engines had a water port at the end of the head and a 3/4-inch spacer cast into the bottom of the head. The 1958-1962 cylinder heads had a 4-bolt valve cover (even the Max Wedge). MOPAR The Chrysler Big Block began life in 1958 and lived until 1978. Raised and greatly enlarged Intake and exhaust ports
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