PI Swap Vs. P&P (cost effectiveness for a future FI engine)

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01-28-2006, 07:04 PM

#11

aking287

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

ok i know p&p is port and polished can someone tell me what PI means. its probably something simple and i'll kick myself for asking

01-28-2006, 07:07 PM

#12

JonBeast

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

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ORIGINAL: aking287

ok i know p&p is port and polished can someone tell me what PI means. its probably something simple and i'll kick myself for asking

Performance Improved

01-28-2006, 07:25 PM

#13

Acer2428

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

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ORIGINAL: mosnet23

Hey guys, I know someone MIGHT have answered this in a LONG drawn out discussion about PI head swaps. But, I assure you my situation if different. For one I don't want a 400+BWHP car, only 300+.

Anyway, I have a friend that would sell me a basically new set of stock heads complete with everything for cheap. What I was going to do is get them P&P, then put them on my stock 96 GT and later on do a few bolt on mods with a S/C being in the (hopefully) near future.

Now my question is I am hearing that the cost of gettin' them P&P, then having the heads put on and getting it tuned could cost me $800+. I wasn't too keen on the widely sought after PI head swap cause it raises your compression too high for a S/C, even at 6 or 7psi I understand that it could give you really bad knocking and basically shorten engine life.

So if I am going to go with a S/C with 6 or 7psi in the future, which would be cheaper and more suitable for me PI head swap or P&P?

It's going to cost way more than that. The tune alone will probably be $500. Cost of chip + tune.

01-28-2006, 08:01 PM

#14

mosnet23

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

Okay well what if i had got a pair of 98 head with valves and spring and all that for like basically free..........then got them P&P then had them put on with a tune. With the tune being $500 how much more would it probably be for the P&P and replacing them?

01-28-2006, 08:13 PM

#15

cammedlx

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

Well look around 500+ for the port work on the heads..And probaly 500+ more for the install and gaskets etc...

01-28-2006, 08:24 PM

#16

DrUnkEnMaStEr69

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Location: Long Island, NY

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

I was reading somewhere that there is something u can add to lower the compression after a PI swap so it would be better for a s/c, i forget what it is called tho...anybody kno of somehting like this?

01-28-2006, 09:52 PM

#17

M1ke

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

labor will probably be a grand then add 5 or 6 hundred for the port work. im not sure on supercharger install so plan on spending more for labor on that then the chip and tune

01-29-2006, 02:21 AM

#18

yoteehunter

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RE: PI Swap Vs. P&P (cost effectiveness for a future FI engine)

To lower the compression in a PI swap you can use "Cometic" head gaskets. The way it works is that you can get them in any thickness so in brings the head up and brings down compression. Also the gaskets are ideal for supercharging almost as goo as oringing the heads. I just woulnt get to carryed away I have no clue how it would effect the cam chains.......If they have slack? I think it would work though. Also I think stock gaskets are 39 thousands think when compressed? dont qoute that I am guessing, so you would then order gaskets that are like 59 thousands. Im guessing........just trying to give you an example......also I think for every 20 thousands .5 compression is lost.....but again I am not sure. Maybe someone with the facts will chim in and get me strait.