1.312" dia x 3.67" long intake valve as used in GT13 heads.
Longman valves are specially shaped for maximum flow. For high lift applications use 3.67" length with appropriate springs and roller platforms.
1.312" dia x 3.67" long intake valve as used in GT13 heads.
Longman valves are specially shaped for maximum flow. For high lift applications use 3.67" length with appropriate springs and roller platforms.
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