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Freddie · 12-22-2008, 11:05 AM

Without a picture I cannot be sure but sounds like a YATES type piston, for either the YATES or a Twisted Wedge head. Alot of the cup teams used to use a 4.100 or even a 4.125 bore in the Dart block, with a 4" stroke crank. More than likely were originally fitted with a set of 6.2 rods as well.

If it were in a 9.5 deck hight block, -1.00 Comp hight, -2.00 1/2 the stroke, leaves you a 6.5" rod, so if it were in a 9.2 deck block it would use the very common 6.2" rod. unless you use a bigger crank, but you get the idea from there.

12-22-2008, 11:05 AM	#3
Freddie Member Join Date: Jul 2005 Location: Tampa Fla / Anderson SC Posts: 334 Likes: 12 Liked 3 Times in 2 Posts	Re: Need help ID'ing SBF Stroker Piston.... Without a picture I cannot be sure but sounds like a YATES type piston, for either the YATES or a Twisted Wedge head. Alot of the cup teams used to use a 4.100 or even a 4.125 bore in the Dart block, with a 4" stroke crank. More than likely were originally fitted with a set of 6.2 rods as well. If it were in a 9.5 deck hight block, -1.00 Comp hight, -2.00 1/2 the stroke, leaves you a 6.5" rod, so if it were in a 9.2 deck block it would use the very common 6.2" rod. unless you use a bigger crank, but you get the idea from there. __________________ NHRA: Comp 2200 - S/C 2201 NMRA 2012 Outlaw 10.5 #10