Heads
December 3rd, 2018, 08:41 PM
#1
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Heads
Gentle men did from 87 -88 did Oldsmobile Cutlass ever offer aluminum heads on the 307 ? I know they did with an intake. The reason I ask is that I know the spark plug design changed from AC r46sz to Fr3ls6.
Last edited by Scott Parmer; December 3rd, 2018 at 08:43 PM.
December 4th, 2018, 09:15 AM
#2
Jeff
Join Date: Jan 2018
Location: Grand Blanc, MI
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