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#1
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Oil Pan Gasket
Does someone have a recommendation on using or not using a one-piece oil pan gasket for a 1976 455 (with the 5 tabs at the rear on the pan gasket surface), and a brand-part number. Instead of the normal 4 piece gasket Thanks.
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#2
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I have had success with both. The one piece gasket is well worth the money in my opinion. It is designed for an oil pan with 3 tab holes at the rear. To use the one piece gasket, you would just have to cut the tabs off of the gasket or modify your pan to accept the tabs on the gasket. I don't have a part number but the one that I have used is on the BOP Engineering website.
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#3
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I have installed 1 bought from Butler. The fit was excellent
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#4
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My buddy has a clean, leak free engine with no pan gasket, just silicone.
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#5
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I used the one piece from BOP. Very nice piece, excellent fit, and bone dry.
I've been a fan of them for years. I've used them on SBC and BBC engines for a couple of decades now since Felpro makes them readily available at your local parts store. So it's nice to finally see someone stepped up for Pontiac. Did I say the one from BOP is a nice piece? |
#6
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Here is my fix for the rubber rear seal leak problem. Second pic shows how I attach the pick-up tube so it doesn't fall out.
I buy a sheet of cork gasket material and cut it precisely to fit with a razor knife. Never had one drop of oil get past this set-up. The factory rubber seals can and will leak or slip out on you. The wide custom fit cork seal isn't going anyplace. Never tried the one piece pan seal, but probably well worth the investment over the factory set-up for the later pans that used the "tit" type rubber rear pan seals......Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
#7
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I've had the rubber rear seals split on me. I use the cork/rubber one in the kit now. Put a thin coat of Ultra Black on mating surfaces and corners.
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#8
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I had my BOP one piece on and off three times ... still doesn't leak. Have to pay attention to detail at the back though.
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#9
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I used a Felpro 1 piece on a SBC. It was perfect. Daily driver for two years with no leaks.
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#10
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Quote:
Does that work easier ? OGR
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3 Generations of "Beach Boys Racing" ! Everybody knows somthin. Nobody knows everything ! 1st time on a dragstrip, 1964. Flagstart ! "Thanks for the entertainment." "Real Indians Don't Wear Bowties" |
#11
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Damn that makes sense!
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466 Mike Voycey shortblock, 310cfm SD KRE heads, SD "OF 2.0 cam", torker 2 373 gears 3200 Continental Convertor best et 10.679/127.5/1.533 60ft 308 gears best et 10.76/125.64/1.5471 |
#12
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Absolutely, makes everything about that deal easier........just make sure to use hardened material, not cheap/soft threaded rod.....
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
#13
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X 2, Cliff. I use either ARP or Milodon oil pan stud kits in all the engines I build. It simplifies the whole process of installing an oil pan.
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“It takes considerable knowledge just to realize the extent of your own ignorance.” Dr. Thomas Sowell |
#14
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I used the BOP one piece on my 389 and reused it after changing my pan after a year(the pan had a couple of small rust holes that were leaking). Sealed right up again. I would use the one piece again.
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1965 GTO 389 Tri-Power 4-Speed Johnny |
#15
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Quote:
Cliff, do you double-up that cork gasket to get the needed thickness? The cork sheets are 1/2 the thickness of the cork supplied in the Felpro gasket kits. And with the Butler 1-piece torqued down I still have a gap of about 7/32". Do you glue the cork using silicone gasket maker, or some other glue like Gorilla Glue? I realize the Butler 1-Piece is thicker than the Felpro black gasket and the Felpro cork gasket so that might explain the gap. (I have all 3 types at my disposal) |
#16
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Cliff are those studs to bolt oil pan on? Also looks like a SD on stand.
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#17
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I use studs on my 455 for the oil pan...makes setting it up much easier.
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#18
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Hmm .What studs are you using? I was thinking internal allen head studs. I was assembling Pontiac V8 years ago and broke one pan bolt. That was a bugger to get out.
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#19
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Wish I could tell you the exact application….I cannot.
I purchased valve cover studs, ARP, for I think a Mopar engine. I liked the bullet nose aspect * shrug * Not sure why I didn’t get Pontiac VC studs, as I believe they have the same thread as OP bolts.
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costs too much |
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