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5" thick water pump spacers for a 9
Both sides have orings
The ports will be cleaned up at a small size
250" square
R420.2 Intake Port Size:Standard Small Cleanup Pass 5" thick water pump spacersThe R420. 2 cast single plane intake was developed by Brett Miller and made in the US. The carb pad opening comes at a 5. 250" square, unless 5. 800 is selelcted. The ports will be cleaned up at a small size, unless custom port is selected, in which we will match the intake to your port and deck height. The chevy flange is meant to fit 5 degree face angle heads, and will be machined as tall as possible unless custom port is selected.
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