fkurls1 Member Jun 19, 2006 33 0 6 Barrington, Il Dec 2, 2007 #1 Dec 2, 2007 #1 Hey everyone, I'm looking to buy a set of tristate gt40p heads. Has anyone purchased them? And if so do you have all the specs on them? intake/exhaust cc?
Hey everyone, I'm looking to buy a set of tristate gt40p heads. Has anyone purchased them? And if so do you have all the specs on them? intake/exhaust cc?
jtfairlane New Member Mar 5, 2006 468 3 0 Dec 2, 2007 #2 Dec 2, 2007 #2 Tri-State installs larger valves in the GT-40P castings. 1.94 intake 1.54 exhaust. Stock GT-40P valve sizes are 1.84/1.46. As far as I know, Tri-State does not post flow numbers for their GT-40P heads. I have no idea if they even have a flow bench or not. Stock GT-40P head flow data at 28": Intake Exhaust .100 =61 .100=52 .200=128 .200=90 .300=169 .300=123 .400=195 .400=135 .500=196 .500=139 Take that for what it's worth.
Tri-State installs larger valves in the GT-40P castings. 1.94 intake 1.54 exhaust. Stock GT-40P valve sizes are 1.84/1.46. As far as I know, Tri-State does not post flow numbers for their GT-40P heads. I have no idea if they even have a flow bench or not. Stock GT-40P head flow data at 28": Intake Exhaust .100 =61 .100=52 .200=128 .200=90 .300=169 .300=123 .400=195 .400=135 .500=196 .500=139 Take that for what it's worth.