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VTP Cylinder Head Porting
VTP offers head porting in 4 different packages. Each package includes:
- Disassemble & bead blast heads
- Re-conture ports, manifold, and radius valve seats
- Re-machine guides and Sunnen hone to fit
- Finish with 30 degree .100 wide - 45 degree .40 wide - 60 degree .075 wide on seats
- Flowtested on our Superflow 110 flowbench and come with flowchart of your heads
Evolution & Twin Cam Heads
| Stage I: |
Porting and flowing of heads, taper and replace valve guides, retain stock valves, 5 angle valve job. 140 CFM |
$595.00 |
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| Stage II: |
Same as I with the addition of opening up ports. 1.900 intake and 1.630 exhaust valves. 165-170 CFM |
$695.00 |
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| Stage III: |
Same as I and II with the addition of replacing intake seats with over-size units. 1.940 intake and 1.630 exhaust.
set up for big manifold. 175-190 CFM |
$995.00 |
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| Stage IV: |
All out Pro-Gas, Pro-Stock heads. Big manifold. 2.200 intake and 1.750 exhaust. STD castings. VTP .850 lift
springs. 240-270 CFM |
$1950.00 |
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