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SDT1DYI · 03-06-2019, 10:29 AM

It is curious how NHRA tech dept approves a replacement cylinder head when the runner volumes are considerable larger than their own stated specification. Its been said replacement heads are worth 15-20 HP on a SBC combination. The replacement heads with the HP penalty, seem to produce the same ETs.

Steve Teeter. STK. 6380

03-06-2019, 10:29 AM	#11
SDT1DYI Member Join Date: Nov 2016 Location: Indianola Washington Posts: 406 Likes: 0 Liked 456 Times in 148 Posts	Re: Replacement heads on Stocker It is curious how NHRA tech dept approves a replacement cylinder head when the runner volumes are considerable larger than their own stated specification. Its been said replacement heads are worth 15-20 HP on a SBC combination. The replacement heads with the HP penalty, seem to produce the same ETs. Steve Teeter. STK. 6380