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#1
01-06-2010, 09:12 PM
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motor mounts for a pontiac 350 in an 83 gp
so i bought my wife a mint 83 gp for xmas, even it's 3.8 buick slug is in mint running condition. but that won't do. i found a really nice running pontiac 350/th350 combo locally (i know it's not a 400) for cheap, and thought it'd make a nice mild street combo for her new toy. anyway, i know the motor will bolt right in, but i'm not sure if i need pontiac specific motor mounts for it. i've found tons of sbc g-body mounts, but no pontiac ones. i think that the 301 was offered in the g-bodys, which would tell me that it's mounts should work on the 350. anyway, if anyone can confirm this, thanks.
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#2
01-12-2010, 05:16 AM
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The Lemans wagons had a 350 engine option, but I don't know if it was a Pontiac 350. I also don't know if Pontiac 350 and 301 mounts are the same, but I seem to recall they were.
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#3
02-01-2010, 05:46 PM
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The last stock Poncho V8's were in 1981. In this forum, there are quite a few G body owners who dropped in larger ci Pontiac V8s in them. They say that the 301/265 Pontiac motor mounts work with other Ponitac V8's.
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#4
02-01-2010, 07:42 PM
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Few people are more enthusiastic than I about the natural Pontiac V8 but If it were my very clean GP i would keep the 3.8
83 GP is a nice car, 3.8 buick is a great motor for a driver. Id keep the car original at least until the 3.8 wears out. Problem is it will likely outlast the GP. |
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#5
02-08-2010, 06:02 PM
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78-81 301/265 mounts will bolt up to a 70-78 Pontiac 350 for sure, I don'y know if they will bolt up to certain 67-69 blocks with out adaptors, depending on what chassis F or A the 350 was originally put in to. If it is a 70 or later engine, with either 5 or 3 motor mount holes drilled you will only need the brackets that go around the captured style motor mounts to bolt on.
Keep in mind I do have a 80,000 mile 76 400 4bbl and a t-350 trans that came out of a 76 GP that was running well when removed from the rusty car 2 years ago. You could have both for $500.00 USD if you picked them up. I am only about 30 minutes from the Bridge.
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Jeff R 60 Jaguar Mark 2, 3.8L Automatic 67 Sprint Firebird 230 OHC-6 4-Speed A/C 78 Catlina Safari, Pontiac 400 powered 77 Astre Formula, 215 Buick V-8 T-5 73 Lemans Safari, 400 4bbl 4-speed 71 Catalina Enforcer, 455 4bbl 06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed! 2012 F-150 Echo Boost (My local Ford Dealer SUX!!!) 2020 Dodge Charger Scat pack (recovered) |
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#6
02-18-2010, 05:20 PM
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And I have the mounts you need listed in the classified.
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"resurfacing Pa highways 2 long black strips at a time" 78 Olds Cutlass Drag car PONTIAC powered with 440 (destroked 455), th400, 12bolt with spool 4.10z Best to date 10.00@130.92 mph at 3250# 79 Grand Prix, will be new home for the 440 Goal 9.75z@135mph at 2900# 83 Malibu Wagon UUV Crate 350, Custom T5, 8.5 with Auburn posi 3.73z Making it the Ultimate Utility Vehicle Go, tow and show (not so much show, yet) |
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#7
02-20-2010, 08:58 AM
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classified?
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#8
03-01-2010, 10:15 PM
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Thanks guys. I discovered that the 350 is a 325hp 69 block, which will require adapter plates. I have located and purchased them already from thepontiacman, right here on performanceyears.com. She'll be layin' rubber by the spring. Just hope the 7.5 2.72 holds on. Yikes.
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