F/S: 317 Patriot Stage II heads

[YenkoST]

Stage II 1020 Superflow Bench 3.905 Bore

Lift

2.02" Intake Valve


1.57" Exhaust Valve


.100


70 cfm


66 c fm


.200


138 cfm


122 cfm


.300


200 cfm


162 cfm


.400


241 cfm


203 cfm


.500


277 cfm


227 cfm


.550


289 cfm


229 cfm


.600


304 cfm


235 cfm

Now, I bought these heads from another person.....they are brand new and bought bare with the stock LS1 valve sizes....2.00/1.55.

They have the upgraded AFR springs on them, ls1 valves, etc.

I can get pictures tonight...I was going to use these for more NA hp but I've decided to go with a Supercharger instead for right now.

I'm asking $950 shipped.