RE: got $800.00 burnin a hole in my pocket...

tomazzzo · 02-15-2003, 11:30 AM

okay,

It seems that I will get more bang for the buck by doing something with the heads.

I was looking at a set of powerheads from PC automotive.
(E7TE heads ported with bigger valves see mm&ff July 1999
page 180). they dynoed the car with minor boltons and got a 38 hp gain from ported stock heads. Maybe I should just replace the heads for now, then the upper,lower and the rest later.

Oh, by the way, we are talking about changing the heads on a 105,000 mile motor. Ive heard that this is not a good Idea on an old engine opening a can of worms and all that.

Anyone have any problems changing heads on a high milage motor?

Thanks,

Coupe50h · 02-15-2003, 03:59 PM

I have heard of people swapping heads and cam on a high miler, but of course it's always better to have a prepped shortblock, you would be alright, just look at the cylinder walls, inspect it, since i have pretty good oil pressure im thinking of bolting on some gt-40 p's and just hope for the best, i dont know if my odometer is correct, but i have 90k, which is 190k probaly, but after police duty it could have been rebuilt.

Maybe run a compression test, if everthing checks out good, a ported set of e7's should be fine.

mike72678 · 02-16-2003, 12:15 PM

last year , my brother and i took a 302 that was rusted solid from sitting outside in someones backyard for 2 years and had 130000 miles on it and we took the entire thing apart and cleaned everything up , put it all back together with new gaskets and the car ran a 13.8 beautifully with just a couple of bolt ons and some tuning . As long as the motor is in good condition , you will be fine .

tireburner163 · 02-16-2003, 01:24 PM

You can get a set of GT-40P heads for around $450 bucks from Jeff Chambers

Gears would be a nice addition if you don't already have them. The switch to a lower set of gears can shave half a second off your quarter mile time.

02-15-2003, 11:30 AM	#1
tomazzzo Registered Member Join Date: Feb 2001 Location: shreveport, La. USA Posts: 27	RE: got $800.00 burnin a hole in my pocket... okay, It seems that I will get more bang for the buck by doing something with the heads. I was looking at a set of powerheads from PC automotive. (E7TE heads ported with bigger valves see mm&ff July 1999 page 180). they dynoed the car with minor boltons and got a 38 hp gain from ported stock heads. Maybe I should just replace the heads for now, then the upper,lower and the rest later. Oh, by the way, we are talking about changing the heads on a 105,000 mile motor. Ive heard that this is not a good Idea on an old engine opening a can of worms and all that. Anyone have any problems changing heads on a high milage motor? Thanks, __________________ Thomas Monahan 93 Limited Edition Chrome Yellow LX Convertible BBK Shorty Headers BBK 2.5in h pipe with Hi flow cats Flowmaster 2 chamber cat back system 73mm C&L Mass Air Meter BBK Cold Air Kit MSD Ignition & Coil 3.55 gears

02-15-2003, 03:59 PM	#2
Coupe50h Registered Member Join Date: Aug 2002 Location: SanAntonio, Tx Posts: 957	I have heard of people swapping heads and cam on a high miler, but of course it's always better to have a prepped shortblock, you would be alright, just look at the cylinder walls, inspect it, since i have pretty good oil pressure im thinking of bolting on some gt-40 p's and just hope for the best, i dont know if my odometer is correct, but i have 90k, which is 190k probaly, but after police duty it could have been rebuilt. Maybe run a compression test, if everthing checks out good, a ported set of e7's should be fine. __________________ X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear

02-16-2003, 01:24 PM	#4
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	You can get a set of GT-40P heads for around $450 bucks from Jeff Chambers Gears would be a nice addition if you don't already have them. The switch to a lower set of gears can shave half a second off your quarter mile time. __________________ 1987 Buick T-type 1998 HD Electra Elide

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02-16-2003, 12:15 PM	#3
mike72678 MW Link Sponsor Join Date: Sep 2002 Location: rochester , ny Posts: 79	last year , my brother and i took a 302 that was rusted solid from sitting outside in someones backyard for 2 years and had 130000 miles on it and we took the entire thing apart and cleaned everything up , put it all back together with new gaskets and the car ran a 13.8 beautifully with just a couple of bolt ons and some tuning . As long as the motor is in good condition , you will be fine .