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mkeefer · 03-03-2002, 04:16 PM

What material/type of rings should be used in a supercharged 25 psi SB 347 stroker motor (e.g. Street Outlaw Class)?

The top edge of the top ring is located .300" from the top of my pistons. The ring package I was sold is described below. The machinist who bored/honed my block commented that I should consider running something else so I wanted to double check before going any further. I obviously can't change the thickness of the rings now but am most interested in the choice of ring material for this high HP, high heat application.

Top: 1.5mm Ductile Iron-Plasma Moly-Barrel Backcut
2nd: 1.5mm Cast Iron-Phosphate-Taper Backcut Twist
Oil: 3mm std tension oil ring package

03-03-2002, 04:16 PM	#1
mkeefer Registered Member Join Date: Jun 2001 Location: katy,tx us Posts: 6	Blown Outlaw Ring Question What material/type of rings should be used in a supercharged 25 psi SB 347 stroker motor (e.g. Street Outlaw Class)? The top edge of the top ring is located .300" from the top of my pistons. The ring package I was sold is described below. The machinist who bored/honed my block commented that I should consider running something else so I wanted to double check before going any further. I obviously can't change the thickness of the rings now but am most interested in the choice of ring material for this high HP, high heat application. Top: 1.5mm Ductile Iron-Plasma Moly-Barrel Backcut 2nd: 1.5mm Cast Iron-Phosphate-Taper Backcut Twist Oil: 3mm std tension oil ring package __________________ 89 LX coupe http://www.mustangworks.com/cgi-bin/...splay.cgi?2193