Webb18 dec. 2024 · Those SR-71 heads, (out of the box), on a good 550+, high compression short block usually need a cam with about 12 to 14 degrees of spread between intake … Webb20 apr. 2024 · SR-71's are the top of the chain for a conventional style (CJ)port head.Theres proven 1100 +hp with these heads on a 598 or bigger.On a smaller …
Kaase SR-71 Jon Kaase Racing Engines
Webb8 nov. 2024 · 2,528 Posts. #23 · Nov 6, 2024. spyder7724 said: 1200hp with out of the box heads and one carb is pretty impressive. Making 1k hp on a stock block stroker with out of the box heads is really impressive. JK Dyno sheets say 1103 HP on a 598 for the SR 71. 1048 HP on a 598 for the P-51. Call it 55 HP SR71 over the P-51. Webb9 okt. 2011 · My question for the guys that want to run the SR-71 head on a smaller 4.390 to 4.440 bore..to you think it would be preferable to run the bigger head gasket 4.660 etc.. on the (smaller bore sizes) to keep the head gasket out of the chamber ? nascar429 Posts : 91 Join date : 2015-11-08 Re: Jon Kaase SR71 Cylinder Heads iowa chapter 236 protective order
Trick Flow 325cc Power Port fully cnc ported or Kasse P-51 heads?
Webb12 nov. 2024 · The SR-71 heads are completely in-house machined on Kaase’s Hurco 5-axis CNC machine and offer what JKRE calls “ported as-cast” with flow numbers … Webb22 juni 2024 · Jon Kaase Racing Pro Stock port work and competition valve job produce outstanding flow numbers Intake 500cfm @.800 lift Exhaust 350cfm @.800 lift Bare Cylinder Heads 1050.00 each. Complete with Pro Stock port work , Competition valve job, Beryllium seats,Titanium Valves, Race valve springs, Titanium Retainers, Ready to bolt … Webb21 nov. 2024 · It has room for improvement by the numbers i seen on the flow bench.. but i believe not without some welding and fairly major reshaping, i plan to adapt a Air Boss manifold when they become available to the Boss9 engine..so the TFS manifold would be my choice for the SR-71 heads and if 550ci+ and high rpm a Air Boss possibly even … iowa chapter 229