1970 + Canadian Pontiac Power Train Forum

musicman6120 · musicman6120

Hi Guys, i was wondering if anyone could help me, I have 1972 LeMans Luxury with a 400 small block chevy, and a TH350 transmission. The motor came from a 74 full size chevy, not sure about the tranny. I installed a new factory trans crossmember yesterday, because the pdevious owner(s) installed the wr...

Taylor55 · Taylor55

What year car or truck do I look for to find a 700R4 with the correct bolt pattern for a 428 Pontiac engine. I am still thinking about doing this conversion for my 55 stationwagon and using an overdrive transmission to try and get some decent fuel mileage. I remember reading somewhere that some 700R4 hav...

rexs73gto · rexs73gto

Hi my name is Rex & I live in southwesteren Michigan. That in the lower part of MI. on the Indiana MI. line or on lake MI. I have a 73 GTO that i bought new, well it was a demo as I ordered a 455SD car which as we now know they didn't put the SD in the A-Body . I ended up with a left over but I love it just the same. I...

GLHS60 · GLHS60

My 1981 Parisienne has a 7.5 rear diff. with 2.41 axle ratio and I'm thinking I would like to find an 8.5 rear diff that would be a bolt in. Somewhere I read that 1973-1977 Chevelle-Monte Carlo etc. rear diff. is a bolt in and I think they were all 8.5 in that era. Anyone know if this is true or is in something I...

Evil Stu · Evil Stu

I have a 71 455, The casting is 485428, coded YC, date code is D131 So 71 455 325hp cast April 13th 1971 right? how do I read the partial vin which is 212345928? What did this come out of? Stu

73SC · 73SC

I picked up this stock big block Chevelle SS cowl induction air cleaner. I test fit it on the LeMans for a more stockish look. Not sure about it though. NEW look: OLD Look: -- Edited by 73SC on Wednesday 3rd of September 2014 08:39:33 AM

73SC · 73SC

Drove the LeMans hard for about an hour on the highway, pulled into a gas station near home went to leave and nothing. Towed car home, Battery shows 12.8 volts sitting in car, when key is turned all gauges move, all lights work, radio etc.. works, starter will turn over with a jumper wire on solenoid but n...

bill9167 · bill9167

Hi All: I have a 72 Luxury Lemans that came stock with a 350 chevy. The motor is now toast. I obtained a nice 6 cyliner motor from a 72 Camaro. I have all the motor mounts from both the 350 and the 250. To use the ones from the 250 (from the Camaro), I will have to remove the frame parts (perches?) and that i...

Stephenzone · Stephenzone

i have a set of 73 454 quadajet carbs that i want to put some aftermarket breathers on and they have a big honking air horn on the left front. anybody have experience with fitment issues. do i get a shallow base and cut a hole? base with a 2 in lip? any suggestions except a stock air breather because they are g...

pontorquer · pontorquer

This TA was sold new at Brookdale Pontiac Buick LTD Jan-12-1976, so built in 1975. Any Winnipeger here know of this Dealership ? The car used to be silver and blak interior with very little options. So far I removed the front seats, transmission, clutch and flywheel, by the way the pressure plate was...

djm · djm

I've been researching the head and engine ids for my 76 Lemans. Mostly for interest sake and discussion purposes since its seems GM may have done some unusual things to this engine build. The engine is a Chevy 305 block #361979 with heads cast with #333882 (see photo) and triangle end marking consist...

Mike Green · Mike Green

Hi To all. This is my first post. I have an ultra clean '77 GP (400 cid), and the LHS exhaust manifold is cracked. I believe the GM part number is 499623. 1. Are the 1977 400 CID Firebird exhaust manifolds the same as the GP ? 2. Where can I purchase a (preferably new) exhaust manifold ? 3. Has anybody had any...

dcneric · dcneric

This has me stumped. The rear cover is a 10 bolt BOP style but larger than the 8.2 10 bolt cover. The ring gear is a 12 bolt and the axles are retained with C-clips. The axles are the full size car 5x5 with 1/2" studs. See pics, sorry the close up wouldn't focus on the c-clip retainer. I guess I would li...

455gto · 455gto

I have a couple of dings on this pulley. One is OK, but the one dent I can feel in the belt grove. Will it throw off a crank?

burstintoflames · burstintoflames

My 1975 LeMans canada cup is going to get a new setup, any recomendations?

PMD-242 · PMD-242

NO ONE I KNOW CAN TELL ME FOR SURE WITCH ENGINE WAS STOCK OR DID THEY HAVE BOTH ,THANKS GUYS

PMD-242 · PMD-242

hey fellow pontiacers, need help to find what this engine is and was, engine cast # is 9785581, L130 BY DISTUBUTOR,ENGINE CODE IS YE. I HAVE IT NARROWED DOWN TO 67 OR 68 400, HAVE SEARTHED CODES ONLINE CANT FIND THIS ONE , IT COULD BE A 69 350 ALSO , BLOCK HAS 3 FROST PLUGS SO THAT MEANS LATE 67 OR LATER , AL...

dualquadpete · dualquadpete

Posted this in the W.V. trip site but thought I'd ask here?? Anybody ever seen a cross ram Int. for a BBC??? I'd never seen one till I took this oicture at car show!!!!

81lemans455 · 81lemans455

beast....http://www.youtube.com/watch?v=-cw9PQx5Q00&feature=g-upl

Professur · Professur

Finally managed to get my 200C transmission completed. Was just buttoning up the last little bits when ... disaster. The shift selection lever is held in place .. believe it or not .. with a 1.5" common nail .. a regular wood nail .. with a spline pressed into it. Well .. the damn thing broke in two. ...

Topic		Started By	Replies	Views	Last Post
	Clunk in drivetrain and Gear shift won't go into Drive Fixed (Preview) Hi Guys, i was wondering if anyone could help me, I have 1972 LeMans Luxury with a 400 small block chevy, and a TH350 transmission. The motor came from a 74 full size chevy, not sure about the tranny. I installed a new factory trans crossmember yesterday, because the pdevious owner(s) installed the wr...	musicman6120	1	3259	Dec 8, 2014 by JC2+2
	700R4 for an Americian pontiac engine (Preview) What year car or truck do I look for to find a 700R4 with the correct bolt pattern for a 428 Pontiac engine. I am still thinking about doing this conversion for my 55 stationwagon and using an overdrive transmission to try and get some decent fuel mileage. I remember reading somewhere that some 700R4 hav...	Taylor55	7	4584	Nov 20, 2014 by rexs73gto
	I'm new & live in Michigan (Preview) Hi my name is Rex & I live in southwesteren Michigan. That in the lower part of MI. on the Indiana MI. line or on lake MI. I have a 73 GTO that i bought new, well it was a demo as I ordered a 455SD car which as we now know they didn't put the SD in the A-Body . I ended up with a left over but I love it just the same. I...	rexs73gto	12	4257	Nov 20, 2014 by rexs73gto
	1981 B Body - 1973-1977 A body diff. swap ?? (Preview) My 1981 Parisienne has a 7.5 rear diff. with 2.41 axle ratio and I'm thinking I would like to find an 8.5 rear diff that would be a bolt in. Somewhere I read that 1973-1977 Chevelle-Monte Carlo etc. rear diff. is a bolt in and I think they were all 8.5 in that era. Anyone know if this is true or is in something I...	GLHS60	24	6648	Nov 19, 2014 by rexs73gto
	How do I read the partial vin? (Preview) I have a 71 455, The casting is 485428, coded YC, date code is D131 So 71 455 325hp cast April 13th 1971 right? how do I read the partial vin which is 212345928? What did this come out of? Stu	Evil Stu	2	2522	Sep 20, 2014 by Evil Stu
	Picked up a Chevelle SS Cowl Induction air cleaner (Preview) I picked up this stock big block Chevelle SS cowl induction air cleaner. I test fit it on the LeMans for a more stockish look. Not sure about it though. NEW look: OLD Look: -- Edited by 73SC on Wednesday 3rd of September 2014 08:39:33 AM	73SC	21	7538	Sep 5, 2014 by hawkeye5766
	Rat Boy's Beast No Start Condition - opinions please. ( 1 2 ) It's running (Preview) Drove the LeMans hard for about an hour on the highway, pulled into a gas station near home went to leave and nothing. Towed car home, Battery shows 12.8 volts sitting in car, when key is turned all gauges move, all lights work, radio etc.. works, starter will turn over with a jumper wire on solenoid but n...	73SC	26	6717	Jul 22, 2014 by hawkeye5766

	motor mounts (Preview) Hi All: I have a 72 Luxury Lemans that came stock with a 350 chevy. The motor is now toast. I obtained a nice 6 cyliner motor from a 72 Camaro. I have all the motor mounts from both the 350 and the 250. To use the ones from the 250 (from the Camaro), I will have to remove the frame parts (perches?) and that i...	bill9167	5	3111	Apr 10, 2014 by 427carl
	air breather, air horn interference recommendation 7043262 (Preview) i have a set of 73 454 quadajet carbs that i want to put some aftermarket breathers on and they have a big honking air horn on the left front. anybody have experience with fitment issues. do i get a shallow base and cut a hole? base with a 2 in lip? any suggestions except a stock air breather because they are g...	Stephenzone	11	2849	Mar 19, 2014 by Stephenzone
	Parting out my Winnipeg 1976 Pontiac Trans Am 455 4 speed (Preview) This TA was sold new at Brookdale Pontiac Buick LTD Jan-12-1976, so built in 1975. Any Winnipeger here know of this Dealership ? The car used to be silver and blak interior with very little options. So far I removed the front seats, transmission, clutch and flywheel, by the way the pressure plate was...	pontorquer	5	1962	Oct 13, 2013 by rabbit64cs
	Chevy 305 in 1976 Lemans (Preview) I've been researching the head and engine ids for my 76 Lemans. Mostly for interest sake and discussion purposes since its seems GM may have done some unusual things to this engine build. The engine is a Chevy 305 block #361979 with heads cast with #333882 (see photo) and triangle end marking consist...	djm	3	1741	Oct 1, 2013 by CdnGMfan
	1977 GP Exhaust Manifold (Preview) Hi To all. This is my first post. I have an ultra clean '77 GP (400 cid), and the LHS exhaust manifold is cracked. I believe the GM part number is 499623. 1. Are the 1977 400 CID Firebird exhaust manifolds the same as the GP ? 2. Where can I purchase a (preferably new) exhaust manifold ? 3. Has anybody had any...	Mike Green	4	1890	Jun 12, 2013 by Bob F
	10 bolt cover with 12 bolt ring gear (Preview) This has me stumped. The rear cover is a 10 bolt BOP style but larger than the 8.2 10 bolt cover. The ring gear is a 12 bolt and the axles are retained with C-clips. The axles are the full size car 5x5 with 1/2" studs. See pics, sorry the close up wouldn't focus on the c-clip retainer. I guess I would li...	dcneric	17	3109	Jun 11, 2013 by CdnGMfan
	Crank pulley dents (Preview) I have a couple of dings on this pulley. One is OK, but the one dent I can feel in the belt grove. Will it throw off a crank?	455gto	2	1627	Mar 10, 2013 by 455gto

	Engine and Tranny swap 1975 Cup Canada LeMans (Preview) My 1975 LeMans canada cup is going to get a new setup, any recomendations?	burstintoflames	23	6911	Dec 16, 2012 by 427carl
	DID A 1971 PONTIAC LEMANS COME STOCK WITH PONTIAC ENGINE OR A SMALL BLOCK CHEVY IN CANADA (Preview) NO ONE I KNOW CAN TELL ME FOR SURE WITCH ENGINE WAS STOCK OR DID THEY HAVE BOTH ,THANKS GUYS	PMD-242	18	3193	Dec 10, 2012 by PMD-242
	need to decode this engine, in 69 GTO , but not original ( 1 2 ) (Preview) hey fellow pontiacers, need help to find what this engine is and was, engine cast # is 9785581, L130 BY DISTUBUTOR,ENGINE CODE IS YE. I HAVE IT NARROWED DOWN TO 67 OR 68 400, HAVE SEARTHED CODES ONLINE CANT FIND THIS ONE , IT COULD BE A 69 350 ALSO , BLOCK HAS 3 FROST PLUGS SO THAT MEANS LATE 67 OR LATER , AL...	PMD-242	34	4237	Dec 10, 2012 by PMD-242
	BBC cross Ram???? (Preview) Posted this in the W.V. trip site but thought I'd ask here?? Anybody ever seen a cross ram Int. for a BBC??? I'd never seen one till I took this oicture at car show!!!!	dualquadpete	10	2089	Oct 11, 2012 by dualquadpete
	motor is finally running... (Preview) beast....http://www.youtube.com/watch?v=-cw9PQx5Q00&feature=g-upl	81lemans455	8	1751	Sep 13, 2012 by 81lemans455
	For want of a nail, the war was lost (Preview) Finally managed to get my 200C transmission completed. Was just buttoning up the last little bits when ... disaster. The shift selection lever is held in place .. believe it or not .. with a 1.5" common nail .. a regular wood nail .. with a spline pressed into it. Well .. the damn thing broke in two. ...	Professur	15	2966	Sep 10, 2012 by macsleuth
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