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65wagon · 65wagon

when I picked up the 81 Pontiac it quite frankly ran like crap, so I pulled out my book and did a little drilling, ive had to modify every q jet I own

73SC · 73SC

I started this first post last fall in October when my Corvette was acting up after a summer of driving it with three hose failures. It was written in October 2020 so keep that in mind when reading time lines. I decided to go in for the coil and ICM on my LT1 which was backfiring and being fussy when I parked...

Dave Rose · Dave Rose

I have this air cleaner base -not sure what it is from-any help with it would be appreciated-I think it is for a 1973-79 Firebird or Trans Am-alos what is it worth?Thanks for any input!Stay Safe!Keep on Cruising!Dave

timbuk · timbuk

Acouto Set of Alternator Bracket,181191727179 Stainless Steel Alternator Bracket for Chevy 283 305 327 350 383 400 well got the motor in the monza has a short water pump but cant locate the alt bracket do you guys think this one will work engine is 77 350

65wagon · 65wagon

I know nothing about American Pontiac motors, as such im trying to figure out why someone would put 2 in manifolds on a 455, second question can I get 2 1/2 manifolds that fit a b body chassis . and yes I know, just got it have to modify, but I have a leak and the exhaust is rotten so I need to bend up new pipes and...

Ponchorelli · Ponchorelli

I am currently working on a 1972 Pontiac Luxury Lemans. It has a 400 4bbl engine. it has blue paint. My father who had a 1970 or 71 Lemans back in the day would tell me about his having a blue engine which meant it was an American engine and was more powerful. a) is it true that an American blue engine was more p...

Ponchorelli · Ponchorelli

any idea whether 1967 gto\tempedt\lemans hooker headets would fit a 1972 Pontiac luxury lemans? Ddciding to buy but far away so cant check thanks

360Rocket · 360Rocket

So I have a 1970 Pontiac GTO built in the Oshawa plant and came with a factory installed 12 bolt. It currently contains a posi carrier with 4:11 gears. I am trying to find out what the factory original gears were? Here is a pic of the axle front passenger side axle tube. Thanks gang. [URL=http://s325.ph...

musicman6120 · musicman6120

Hi Everyone, I have a 72 LeMans with a 400 small block Chevy in it, which isn't original to the car. I have been trying to decode the engine with the numbers I found on the block. The numbers are as follows: T0123CSU, 330817, and 261702197. Thanks for the help greatly appreciated.

musicman6120 · musicman6120

Hi Everyone, i have a 72 LeMans that has a vibration I can't seem to fix. It starts around 50 mph but gets worse up to around 65 mph. After that it does smooth out a bit but it's still there. It gets so bad the steering wheel will shake violently and the seats shake as does pretty much the whole car. It seems t...

musicman6120 · musicman6120

Hi all, I have a 1972 Pontiac LeMans Luxury, it's a two door hardtop with a 400 small block Chevy, and TH350 trans. The car is a Canadian car built in the Oshawa plant. I was wondering what type of transmission crossmember these cars would have came with? I should note that the engine and tranny aren't or...

GLHS60 · GLHS60

1981 Pontiac with a SBC and non lockup T 350Suddenly, without warning, driving in very slow moving traffic, my T-350 binds up when shifting into high gear. Binds hard, probably break something if I let it continue. Shifting the stock column shifter to 2nd eliminated the problem. Only when shifting f...

65post · 65post

I got an old Muncie that I would like to know what model of vehicle it came from.Here is the info I got from it. Main case Casting #s 3925669 - POM15A - 10W118202 Tag on side cover 3952659WB Tail housing 38575846

musicman6120 · musicman6120

I have a 72 LeMans with a 400 sbc and TH350. The transmission seems to makes a whirring sound in park and neutral, and also through all gears. It does this regardless if the transmission is cold or warm. I not sure what type of torque convertor is installed since it's not the original drivetrain. I checke...

unclebernie · unclebernie

As a lot of you may know, 427 Carl had talked me into more cubic inches in my 72 Lemans . Based on the install thread that Ratboy has already posted, I will show some of the issues I ran into on my install. I don't have all my pictures here but the engine swap was the same as Ray had posted previously. I am s...

73SC · 73SC

Drove car around Saturday and it was running well. Started it Sunday afternoon and all I heard was a loud CLANG and no start. Tried key again and it started, let it run for a bit then turned it off and have not tried to start again. So I figure the Clang was solenoid engaging starter gear into flywheel with n...

mr57 · mr57

I just picked up a 2002 Sunfire for a beater car and when I close the driver's door the starter clicks in aand turns the motor over 1/8 turn. Is this a ground issue? Any one have an idea where to start looking??

long stroke · long stroke

I am helping a good buddy of mine with his 1979 Pontiac Trans Am. It has a 403 V-8 Oldsmobile motor in it and i just replaced all the valve stem seals on the motor. My question to the brotherhood that might know is this. What is the best procedure to adjust the valve lifters while the engine is running. I have...

musicman6120 · musicman6120

Has anyone had any issues with their back drive linkage hitting the header. I can only shift from Park to Neutral(console shift car) and when I try to go to Drive the back drive Rod that goes to the shifter lever on the transmission hits on top of the header, preventing me from shifting. the headers are ma...

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...

Topic		Started By	Replies	Views	Last Post
	81 pontiac special carb tune (Preview) when I picked up the 81 Pontiac it quite frankly ran like crap, so I pulled out my book and did a little drilling, ive had to modify every q jet I own	65wagon	5	1366	Dec 5, 2021 by 65wagon
	GEN II LT1 5.7 ICM COIL and OPTISPARK replacement (Preview) I started this first post last fall in October when my Corvette was acting up after a summer of driving it with three hose failures. It was written in October 2020 so keep that in mind when reading time lines. I decided to go in for the coil and ICM on my LT1 which was backfiring and being fussy when I parked...	73SC	1	2084	May 19, 2021 by 73SC
	Help ID this Air Cleaner Base/Value (Preview) I have this air cleaner base -not sure what it is from-any help with it would be appreciated-I think it is for a 1973-79 Firebird or Trans Am-alos what is it worth?Thanks for any input!Stay Safe!Keep on Cruising!Dave	Dave Rose	0	1586	Jun 28, 2020 by Dave Rose
	alt bracket question (Preview) Acouto Set of Alternator Bracket,181191727179 Stainless Steel Alternator Bracket for Chevy 283 305 327 350 383 400 well got the motor in the monza has a short water pump but cant locate the alt bracket do you guys think this one will work engine is 77 350	timbuk	1	1902	Mar 20, 2020 by Prefectca
	75 455 exhaust manifolds ( 1 2 ) (Preview) I know nothing about American Pontiac motors, as such im trying to figure out why someone would put 2 in manifolds on a 455, second question can I get 2 1/2 manifolds that fit a b body chassis . and yes I know, just got it have to modify, but I have a leak and the exhaust is rotten so I need to bend up new pipes and...	65wagon	29	4183	Nov 2, 2019 by Glenn Musgrave
	72 Pontiac engine Pontiac engine (Preview) I am currently working on a 1972 Pontiac Luxury Lemans. It has a 400 4bbl engine. it has blue paint. My father who had a 1970 or 71 Lemans back in the day would tell me about his having a blue engine which meant it was an American engine and was more powerful. a) is it true that an American blue engine was more p...	Ponchorelli	16	2724	Oct 24, 2018 by unruhjonny
	Will these headers fit my car (Preview) any idea whether 1967 gto\tempedt\lemans hooker headets would fit a 1972 Pontiac luxury lemans? Ddciding to buy but far away so cant check thanks	Ponchorelli	6	2120	Oct 5, 2018 by magmom

	rear axle help? (Preview) So I have a 1970 Pontiac GTO built in the Oshawa plant and came with a factory installed 12 bolt. It currently contains a posi carrier with 4:11 gears. I am trying to find out what the factory original gears were? Here is a pic of the axle front passenger side axle tube. Thanks gang. [URL=http://s325.ph...	360Rocket	21	5567	Dec 17, 2017 by 4SPEED427
	Decoding a Small Block Chevy 400 (Preview) Hi Everyone, I have a 72 LeMans with a 400 small block Chevy in it, which isn't original to the car. I have been trying to decode the engine with the numbers I found on the block. The numbers are as follows: T0123CSU, 330817, and 261702197. Thanks for the help greatly appreciated.	musicman6120	9	4482	Mar 14, 2017 by 73SC
	Vibration 50 to 65 mph ( 1 2 ) (Preview) Hi Everyone, i have a 72 LeMans that has a vibration I can't seem to fix. It starts around 50 mph but gets worse up to around 65 mph. After that it does smooth out a bit but it's still there. It gets so bad the steering wheel will shake violently and the seats shake as does pretty much the whole car. It seems t...	musicman6120	39	8653	Oct 5, 2016 by oshawacliff
	Transmission crossmember for Canadian built 72 LeMans (Preview) Hi all, I have a 1972 Pontiac LeMans Luxury, it's a two door hardtop with a 400 small block Chevy, and TH350 trans. The car is a Canadian car built in the Oshawa plant. I was wondering what type of transmission crossmember these cars would have came with? I should note that the engine and tranny aren't or...	musicman6120	4	3363	Aug 19, 2016 by GLHS60
	Any T-350 experts on board ?? (Preview) 1981 Pontiac with a SBC and non lockup T 350Suddenly, without warning, driving in very slow moving traffic, my T-350 binds up when shifting into high gear. Binds hard, probably break something if I let it continue. Shifting the stock column shifter to 2nd eliminated the problem. Only when shifting f...	GLHS60	0	3276	Apr 23, 2016 by GLHS60
	Muncie Trans ID Help (Preview) I got an old Muncie that I would like to know what model of vehicle it came from.Here is the info I got from it. Main case Casting #s 3925669 - POM15A - 10W118202 Tag on side cover 3952659WB Tail housing 38575846	65post	6	7376	Aug 28, 2015 by 427carl
	TH350 makes a whirring type sound (Preview) I have a 72 LeMans with a 400 sbc and TH350. The transmission seems to makes a whirring sound in park and neutral, and also through all gears. It does this regardless if the transmission is cold or warm. I not sure what type of torque convertor is installed since it's not the original drivetrain. I checke...	musicman6120	4	3122	Jun 21, 2015 by 67curves

	1972 Lemans Big Block swap (Preview) As a lot of you may know, 427 Carl had talked me into more cubic inches in my 72 Lemans . Based on the install thread that Ratboy has already posted, I will show some of the issues I ran into on my install. I don't have all my pictures here but the engine swap was the same as Ray had posted previously. I am s...	unclebernie	4	4624	Jun 5, 2015 by unclebernie
	More Starter issues for Rat Boy - CLANG ( 1 2 ) Success (Preview) Drove car around Saturday and it was running well. Started it Sunday afternoon and all I heard was a loud CLANG and no start. Tried key again and it started, let it run for a bit then turned it off and have not tried to start again. So I figure the Clang was solenoid engaging starter gear into flywheel with n...	73SC	36	9506	Jun 5, 2015 by koolconvertible
	Help please: Sunfire is possessed electrically (Preview) I just picked up a 2002 Sunfire for a beater car and when I close the driver's door the starter clicks in aand turns the motor over 1/8 turn. Is this a ground issue? Any one have an idea where to start looking??	mr57	2	2866	Apr 7, 2015 by 4SPEED427
	Adjusting lifters while running on 403 Olds V-8 in 1979 Pontiac Trans Am. (Preview) I am helping a good buddy of mine with his 1979 Pontiac Trans Am. It has a 403 V-8 Oldsmobile motor in it and i just replaced all the valve stem seals on the motor. My question to the brotherhood that might know is this. What is the best procedure to adjust the valve lifters while the engine is running. I have...	long stroke	4	4683	Mar 29, 2015 by dualquadpete
	Back Drive Linkage Hitting Header (Preview) Has anyone had any issues with their back drive linkage hitting the header. I can only shift from Park to Neutral(console shift car) and when I try to go to Drive the back drive Rod that goes to the shifter lever on the transmission hits on top of the header, preventing me from shifting. the headers are ma...	musicman6120	3	3947	Jan 5, 2015 by 427carl
	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	3013	Dec 8, 2014 by JC2+2
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