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Discussion Starter #1 (Edited)
I'm having new cylinder heads built for my SVO-blown Big Bore. The "old" heads are in excellent condition and will work well on a naturally aspirated or streetable forced induction setup. Specs are as follows:
* 1997 NPI castings
* Ported and polished by Jim O'Neill
* 0.5mm oversize SS valves
* Manley Nextec springs
The valvetrain only has about 3,000 miles of use.

Price is $660 shipped to the lower 48 states. Can be paid by credit card through ModularPerformance if desired.
 

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Will these heads work on a completely stock 1997 T-Bird 4.6 liter V-8 without any modifications or major new parts? My current heads have, I believe, worn valve guides that cause my car to use some oil and smoke a bit from the exhaust when it's idling and I'd love to take care of that problem!

Thanks,

Dennis
 

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Discussion Starter #3 (Edited)
dmw_4814,

They will bolt up with no mechanical mods. You will need to reuse your cams, lash adjusters and rockers, as they are not included.
 

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Discussion Starter #6 (Edited)
3 blue Merks,

Vlv Lift Int CFM Exh CFM
0.100 60 45
0.200 102 87
0.300 143 113
0.400 173 118
0.500 194 119

These heads are obviously not world-beaters on the exhaust side, but they are good enough to support the power and torque figures in my signature!
 

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Discussion Starter #8
It has a big bore conversion with stock CR, Comp XE274H cams, water/meth injection and 12 lbs of non-intercooled boost. The intake side consists of a home-built 4" diameter cold air setup with a 90mm LMAF and 75mm TB. Exhaust includes Kooks mid-length headers, high flow cats and a 2.5" true dual system.
 

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High-Mileage 4.6L Thrasher
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Discussion Starter #12
For those unfamiliar with the name Jim O'Neill, he is the guy who runs Renegade Racing.
 

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would a 95 npi motor

be able to use them ???? & WHAT CHANGES TO BE MADE:confused:
 

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High-Mileage 4.6L Thrasher
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Discussion Starter #18
Price Reduced

Price is reduced to $500 shipped to the lower 48 states. You will not find a better deal on NPI heads!

Can be paid by credit card through ModularPerformance if desired.
 

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Baddest N/A NPI in Canada
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WTF, I don't understand why these have not sold, even at $600.00. Are you selling them on any other board?
 

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Discussion Starter #20
TGJ,

They are also listed on ModularDepot, ModularFords and the Corral. I've been surprised by the lack of interest too.
 
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