i pulled the heade and intake from a car i just bought, and i scrapped the rest of the car, it had 6x heads on it. are they worth any thing? are they good for anything? let me know
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pontiac 400 6X heads. any good?
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pontiac 400 6X heads. any good?
2000 WS6 T/A M6. Monster stage 3 clutch, flowmaster cat back, 4.10's, SLP lid, Hurst shifter.
1996 Mustang GT 5 speed STOCK DD
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It all depends...... the 6x heads are great with a littel porting but the yeild a low Compression ratio(i.e. 9:1). There is a Low compression 6X head is the one you want... YOu can tell its a small chamber 6x by a 4 stamped in to the side of the head between the #1 and 3 cylinder exhust ports. These heads were used on the HO 400's and the standard 350 pontiacs and will give you more power due to the fact that there compression chambers are MUCH smaller.
Most Pontiac nuts just go with the edelbrock casts, which you will make more power with, but the cost is around 1100$.
The link below is to an extensive pontiac head chart. Just remember that all 455 heads have compression chambers that are too big for your 400.
Pontiac head ID chart1967 VW Bug 2.3L Ford SVO Inline 4 w/ Turbo, Sand-Drag VW Trans Axle, Race this Import.
2001 Dodge Ram 1500 Totally Stock
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Have you ever seen the wenzler heads for the old Pontiacs...
Here is a link to to some different heads flow numbers.
Flow numbers
Note that the ported 6x has some close numbers to the Wenzler stock head
pictures of the wenzler heads1967 VW Bug 2.3L Ford SVO Inline 4 w/ Turbo, Sand-Drag VW Trans Axle, Race this Import.
2001 Dodge Ram 1500 Totally Stock
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Originally posted by birdman83I have 6x heads on my 75TA 400bb they are ok heads but they aren't worth anything
Why did you toss the car? Didnt you just buy it on ebay for 180 bucks or seomething? I dont think you will get enough out of those heads to make it worth your time.....if you pulled the motor, than maybe....96 WS6 Formula: Ram Air, 383 Stroker, Ported LT4 Heads and Manifold, 1.6 Crane Rollers, 58MM T.B., AS&M Headers, Borla Exhaust, Meziere Elec. H2O Pump, Canton Deep Sump Oil Pan, 100 HP OF TNT N2O!! , T56 Conversion w/ Pro 5.0 shifter, SPEC Stage 3 Clutch, Hotchkiss Subframe Conn., Lakewood Adj. Panhard Bar, Spohn Adj. LCA's, BMR Adj. T.A., Custom 12 bolt w/ 3:73's, Moser Axles, Eaton Posi, Moser Girdle
11.6 @ 123mph (1.6 60' - getting there )
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Actually, the 6x 400s totalled about 7.6:1 compression and put out a whopping 170-80ish HP. The 6x-4 W72 400s totalled about 8.3:1ish compression and put out about 220hp. The 6x head can flow fairly well, but are pretty much throw aways...I believe the combustion chamber is over 100cc. The whole motor, if intact, can be sold for about $250-$300 as a core. If you were going to build the motor, you would want a different set. Even with the 6x-4s on my T/A, I still plan to change them out and wrap them up as the originals. I have the #16 heads on the Firebird 400...R/A III heads...It should be right around 11:1 compression.'77 K5 rock-crawler project
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Originally posted by markd79taActually, the 6x 400s totalled about 7.6:1 compression and put out a whopping 170-80ish HP. The 6x-4 W72 400s totalled about 8.3:1ish compression and put out about 220hp. The 6x head can flow fairly well, but are pretty much throw aways...I believe the combustion chamber is over 100cc. The whole motor, if intact, can be sold for about $250-$300 as a core. If you were going to build the motor, you would want a different set. Even with the 6x-4s on my T/A, I still plan to change them out and wrap them up as the originals. I have the #16 heads on the Firebird 400...R/A III heads...It should be right around 11:1 compression.
About those RAIII heads.... how much do you think a set would go for.... $500, $600 if yo can even find a set thats not being sold on a motor. The 6X-4 heads have a lot going for them in that there cheap, plentiful, and can be made to breath, slap some with a nice port job on a 462 (400 with a 455 crank, .030 over) and you got a nice combo.1967 VW Bug 2.3L Ford SVO Inline 4 w/ Turbo, Sand-Drag VW Trans Axle, Race this Import.
2001 Dodge Ram 1500 Totally Stock
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