Beaumont Power Train Tech Forum

66 Grande guy · 66 Grande guy

Howdy guys, one of my projects this summer besides taking another long walk through Europe, was to change my 66 Beaumont 283 2 barrel to a slightly peppier 283 4 barrel setup as was optional in the early years of Beaumont. (Not 66 though.) That is to say, the 4GC carb on the small intake that would have bee...

crazytrain · crazytrain

on a down flow rad which side is the tranny return line

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...

Lt1 Burb · Lt1 Burb

Just throwing more money at it, lol. Never had an MSD before but car was missing badly. Turned out the bronze gear for my roller cam was worn out. I built a couple brackets to mount the coil and box, just have to make a coil wire.

Gimpper · Gimpper

I think my Parking pawl is busted, any tips on a easy fix, what does it entail, I have the 250 inline 6 -- Edited by Gimpper on Thursday 14th of October 2021 08:46:31 PM

Brelan · Brelan

68 Beaumont Changing out my two speed powerglide on the steering column to a 200 4r transmission centre console. Looking for any feedback on different kits available; I'm looking for a kit that will look great as well as the installation has all the necessary parts. Any recommendation is appreciate...

Coop · Coop

Right now I have 3.55 to 1 gears in the rear end and I'm thinking of adding a Gear Vendors overdrive or swaping the TH400 out for a 700R. If I went with the overdrive I'm also thinking of changing the rear end to 4.11. What do you guys think? Has anyone here done either?

chevy4ever · chevy4ever

What linkage brackets do l need for a t400 to a 3 speed 67 Beaumont console there are two on the transmission need part numbers to order the right ones

see2xu · see2xu

Put a Vintage a/c kit on the '66 Beau over the winter. I worked with their tech representative, and they assembled a hybrid kit with the Pontiac Tempest/GTO "head" end (controls in dash), with the Chevelle BBC spec for everything else. It went in pretty smoothly, the only fabrication was getting th...

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

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...

Topic		Started By	Replies	Views	Last Post
	A Mystery I'm Not that Proud of Solving-Oh Well! (Preview) Howdy guys, one of my projects this summer besides taking another long walk through Europe, was to change my 66 Beaumont 283 2 barrel to a slightly peppier 283 4 barrel setup as was optional in the early years of Beaumont. (Not 66 though.) That is to say, the 4GC carb on the small intake that would have bee...	66 Grande guy	13	1535	Oct 11, 2022 by 4SPEED427
	down flow rad (Preview) on a down flow rad which side is the tranny return line	crazytrain	2	1082	Jun 16, 2022 by crazytrain
	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	7	2779	Mar 17, 2022 by Mike Ward MB
	Lil ignition upgrade (Preview) Just throwing more money at it, lol. Never had an MSD before but car was missing badly. Turned out the bronze gear for my roller cam was worn out. I built a couple brackets to mount the coil and box, just have to make a coil wire.	Lt1 Burb	5	1479	Oct 31, 2021 by Lt1 Burb
	How do I find out what transmission is in my 69, 2 speed or 3 (Preview) I think my Parking pawl is busted, any tips on a easy fix, what does it entail, I have the 250 inline 6 -- Edited by Gimpper on Thursday 14th of October 2021 08:46:31 PM	Gimpper	5	1285	Oct 15, 2021 by oshawacliff
	Centre Console Kit (Preview) 68 Beaumont Changing out my two speed powerglide on the steering column to a 200 4r transmission centre console. Looking for any feedback on different kits available; I'm looking for a kit that will look great as well as the installation has all the necessary parts. Any recommendation is appreciate...	Brelan	5	1222	Oct 11, 2021 by 65Camino
	Over Drive Versus 700R (Preview) Right now I have 3.55 to 1 gears in the rear end and I'm thinking of adding a Gear Vendors overdrive or swaping the TH400 out for a 700R. If I went with the overdrive I'm also thinking of changing the rear end to 4.11. What do you guys think? Has anyone here done either?	Coop	10	2949	Sep 13, 2021 by 65Camino

	Transmission linkage (Preview) What linkage brackets do l need for a t400 to a 3 speed 67 Beaumont console there are two on the transmission need part numbers to order the right ones	chevy4ever	0	975	Sep 8, 2021 by chevy4ever
	Help Wanted! (Preview) Put a Vintage a/c kit on the '66 Beau over the winter. I worked with their tech representative, and they assembled a hybrid kit with the Pontiac Tempest/GTO "head" end (controls in dash), with the Chevelle BBC spec for everything else. It went in pretty smoothly, the only fabrication was getting th...	see2xu	8	1144	Sep 1, 2021 by cdnpont
	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	1367	May 31, 2021 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	1165	May 23, 2021 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	1059	Apr 24, 2021 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	1805	Feb 22, 2021 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	1314	Nov 8, 2020 by oshawacliff

	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	1542	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	1424	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	1603	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	2183	Jan 16, 2020 by 65 SD L79
	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	1819	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	2682	Dec 13, 2019 by HK1837
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