Beaumont Power Train Tech Forum

BPnoOlds · BPnoOlds

Anybody out there have any varified info for these. I realize they are quite rare in the Beaumonts which I am looking for info on. I have only found MDH as 3.31 posi for L79 and 4-speed 300 hp.

Lt1 Burb · Lt1 Burb

I have to say I was impressed, happy, and relieved at how easy it was to put in and that I didnt have to cut my floor pan or massage it. I did have to open it up but I should have anyways when I installed the M21. Just need to get a driveshaft made and I can try it out. Should be a different car, changed from the thum...

Beaumont4008 · Beaumont4008

Its been a long time since I changed a clutch and was wondering if the pressure plate bolts use a lock washer or not. I got the bolts but no washers and am just not sure if they are needed. Ian

68vert · 68vert

Engine in the car I purchased was built by a local reputable shop and they were kind enough to send me the internal details and even the dyno sheet. Pretty happy with the 414 HP / 419 TQ combo from the alum headed 350 vortec block. Was even happier to see it has a roller cam, but here comes the cringe worthy...

citywide · citywide

does anybody know how to tell the difference between the 396 325 hp or 350 hp my vin starts with 738378 i dont know if that helps it is a 1968 beaumont s d -- Edited by citywide on Sunday 8th of November 2020 05:27:24 PM -- Edited by citywide on Sunday 8th of November 2020 05:32:12 PM

Beau_SD_65 · Beau_SD_65

My dear CP folks, here comes interesting issue I ran across my 65 Beaumont w/V8 engine install last year and now I'll have to clarify what I'm gonna do in the end to get the issue sorted out and get the car running. As the car originally came with a L6 190 ci engine, I had to install the V8 option frame mount...

4SPEED427 · 4SPEED427

I am hoping someone has a speedometer cable out of a 64 Beaumont with a Powerglide and is able to measure the length of it. Our site member "Winnipeg" has asked me to see if I can order him a new one and I never trust the jobber catalogues. My experience with their applications has been that they might make s...

zak404 · zak404

Hello, I have just installed a radiator overflow and was wondering if I have to change the radiator cap now and if so would you know the number?

Captain Beaumont · Captain Beaumont

Our good friend JC2+2 is rebuilding my diff, putting in a Richmond posi with 3:55 gears. Is there supposed to be a spacer for the ring gear to line everything up?

ROSIES CAR · ROSIES CAR

I just finished rebuilding an M21 transmission and got to thinking maybe I should swap out the M20 for the M21. But first maybe I should determine which trans will be a better all around trans for my car. The car has a 3.08 gear Posi the tires are 25.6 inch diameter. The M20 currently in my convertible is an...

1966SD · 1966SD

Hoping someone could help determine what carb would have come originally on a 66 beaumont. It has a 327 with a power glide. Thanks Stan

4SPEED427 · 4SPEED427

There is another thread about 327's that has slightly derailed so rather than take it further off course, I'll post separately. The discussion came up that there has been rumours for years (I first heard them in the 70's when I was a teenager) that GM made some 4 bolt main 327's. The Massey Ferguson comb...

jmont64 · jmont64

I have a recent problem that started a couple weeks ago. It was really brief the first couple times and was just a second or two. Engine doesnt diesel it runs just like the key is still on. Yesterday it was probably 5-6 seconds. Havent had any issues with the ignition switch doing everything else it is sup...

beaumontguru · beaumontguru

Does a 1965 L79 chevelle or beaumont have a full 3/8 fuel line from the tank along the frame?

70 SS ACADIAN · 70 SS ACADIAN

from the factory no gaskets but things mating surfaces are not as good as new

Birgs · Birgs

Has anyone converted a 67 Beaumont from an automatic to a standard and if so, what pedals did you use? Pedals from a 67 GTO/Tempest or 67 Chevelle because apparently they are different?

jlysholm · jlysholm

Hi fellas, I'm running an Edelbrock 800cfm carb on the 396/402. I'm also running an Edelbrock Victor Jr high volume fuel pump. It supplies the carb with consistent 9psi. I'm just learning now (because I failed to read the Edelbrock manual) ...that Edelbrock carbs require no more than 6.5psi. Has...

zak404 · zak404

My turbo 350 transmission doesn't shift into 1st until you have sat at a light for about 20 seconds? The fluid level is up, I don't think the linkage position would affect it? In automatic mode it wouldn't stay in low past 3000 RPM under full throttle, in spite of adjusting the linkage which doesn't seem...

JJ · JJ

I was thinking of taking out my Rochester carb and going with a Holly or Edelbrock. Any body have an opinion would be appreciated.

norontcan · norontcan

Just finishing up installing the powerglide back into my 64 Beaumont SD. Have a question on how to tie in the transmission cooling lines to the radiator. Attached scan shows the locations of the cooling lines on the transmission case but question is how do the lines attach to the cooler in the radiator...

Topic		Started By	Replies	Views	Last Post
	1965 Canadian 12-bolt stamp codes (Preview) Anybody out there have any varified info for these. I realize they are quite rare in the Beaumonts which I am looking for info on. I have only found MDH as 3.31 posi for L79 and 4-speed 300 hp.	BPnoOlds	2	235	May 31st by sman
	Installed the TKX 5 spd today (Preview) I have to say I was impressed, happy, and relieved at how easy it was to put in and that I didnt have to cut my floor pan or massage it. I did have to open it up but I should have anyways when I installed the M21. Just need to get a driveshaft made and I can try it out. Should be a different car, changed from the thum...	Lt1 Burb	2	201	May 23rd by 65Camino
	Pressure plate bolts, lock washers ? (Preview) Its been a long time since I changed a clutch and was wondering if the pressure plate bolts use a lock washer or not. I got the bolts but no washers and am just not sure if they are needed. Ian	Beaumont4008	4	200	April 24th by 4SPEED427
	Some good info and Roller cam advice (Preview) Engine in the car I purchased was built by a local reputable shop and they were kind enough to send me the internal details and even the dyno sheet. Pretty happy with the 414 HP / 419 TQ combo from the alum headed 350 vortec block. Was even happier to see it has a roller cam, but here comes the cringe worthy...	68vert	8	402	February 22nd by 68vert
	need advice (Preview) does anybody know how to tell the difference between the 396 325 hp or 350 hp my vin starts with 738378 i dont know if that helps it is a 1968 beaumont s d -- Edited by citywide on Sunday 8th of November 2020 05:27:24 PM -- Edited by citywide on Sunday 8th of November 2020 05:32:12 PM	citywide	5	394	Nov 8, 2020 by oshawacliff
	65 beaumont exhaust header issue (Preview) My dear CP folks, here comes interesting issue I ran across my 65 Beaumont w/V8 engine install last year and now I'll have to clarify what I'm gonna do in the end to get the issue sorted out and get the car running. As the car originally came with a L6 190 ci engine, I had to install the V8 option frame mount...	Beau_SD_65	4	791	Nov 8, 2020 by Lt1 Burb
	64 Beaumont help needed---speedometer cable length? (Preview) I am hoping someone has a speedometer cable out of a 64 Beaumont with a Powerglide and is able to measure the length of it. Our site member "Winnipeg" has asked me to see if I can order him a new one and I never trust the jobber catalogues. My experience with their applications has been that they might make s...	4SPEED427	10	599	Apr 26, 2020 by Brian

	Rad cap with overflow (Preview) Hello, I have just installed a radiator overflow and was wondering if I have to change the radiator cap now and if so would you know the number?	zak404	6	600	Apr 18, 2020 by zak404
	69 BOP 8.2 posi swap (Preview) Our good friend JC2+2 is rebuilding my diff, putting in a Richmond posi with 3:55 gears. Is there supposed to be a spacer for the ring gear to line everything up?	Captain Beaumont	17	714	Apr 2, 2020 by Captain Beaumont
	M20 or M21 ? (Preview) I just finished rebuilding an M21 transmission and got to thinking maybe I should swap out the M20 for the M21. But first maybe I should determine which trans will be a better all around trans for my car. The car has a 3.08 gear Posi the tires are 25.6 inch diameter. The M20 currently in my convertible is an...	ROSIES CAR	12	933	Jan 16, 2020 by 70 SS ACADIAN
	66 beaumont carburetor (Preview) Hoping someone could help determine what carb would have come originally on a 66 beaumont. It has a 327 with a power glide. Thanks Stan	1966SD	13	793	Jan 4, 2020 by 68 customized
	4 Bolt Main 327 Blocks (Preview) There is another thread about 327's that has slightly derailed so rather than take it further off course, I'll post separately. The discussion came up that there has been rumours for years (I first heard them in the 70's when I was a teenager) that GM made some 4 bolt main 327's. The Massey Ferguson comb...	4SPEED427	22	1479	Dec 13, 2019 by HK1837
	Engine keeps running after ignition is switched off. (Preview) I have a recent problem that started a couple weeks ago. It was really brief the first couple times and was just a second or two. Engine doesnt diesel it runs just like the key is still on. Yesterday it was probably 5-6 seconds. Havent had any issues with the ignition switch doing everything else it is sup...	jmont64	8	899	Oct 18, 2019 by jmont64
	L79 327 in a chevelle beaumont does it have a 3/8 fuel line (Preview) Does a 1965 L79 chevelle or beaumont have a full 3/8 fuel line from the tank along the frame?	beaumontguru	6	797	Oct 5, 2019 by 4SPEED427

	Exhaust manifold gaskets yes or no? (Preview) from the factory no gaskets but things mating surfaces are not as good as new	70 SS ACADIAN	22	981	Sep 16, 2019 by 70 SS ACADIAN
	67 Beaumont auto to standard conversion (Preview) Has anyone converted a 67 Beaumont from an automatic to a standard and if so, what pedals did you use? Pedals from a 67 GTO/Tempest or 67 Chevelle because apparently they are different?	Birgs	11	1237	Sep 4, 2019 by mellow yellow 67
	Installing a fuel pressure regulator... (Preview) Hi fellas, I'm running an Edelbrock 800cfm carb on the 396/402. I'm also running an Edelbrock Victor Jr high volume fuel pump. It supplies the carb with consistent 9psi. I'm just learning now (because I failed to read the Edelbrock manual) ...that Edelbrock carbs require no more than 6.5psi. Has...	jlysholm	1	739	Aug 21, 2019 by dualquadpete
	Transmission Issue (Preview) My turbo 350 transmission doesn't shift into 1st until you have sat at a light for about 20 seconds? The fluid level is up, I don't think the linkage position would affect it? In automatic mode it wouldn't stay in low past 3000 RPM under full throttle, in spite of adjusting the linkage which doesn't seem...	zak404	5	985	Jun 14, 2019 by zak404
	Carb (Preview) I was thinking of taking out my Rochester carb and going with a Holly or Edelbrock. Any body have an opinion would be appreciated.	JJ	4	922	May 14, 2019 by JJ
	64 Beaumont powerglide cooling lines? (Preview) Just finishing up installing the powerglide back into my 64 Beaumont SD. Have a question on how to tie in the transmission cooling lines to the radiator. Attached scan shows the locations of the cooling lines on the transmission case but question is how do the lines attach to the cooler in the radiator...	norontcan	2	914	Apr 5, 2019 by HK1837
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