65-70 Full Size Power Train Tech Forum

cdnpont · cdnpont

I figure I might try to document the conversion of the 65 Laurentian, from power glide to a 4 speed Muncie M20. I'll ad that Carl Stevenson has been a invaluable resource on this conversion, and has helped me out immensely. thanks Carl! And be sure to check out Dave's conversion post sticky as well. I'll...

cdnpont · cdnpont

It can be smooth when the bolts turn like new. Even the lines came undone. No rust. Drivers side needed the Vice Grip, but only just (because I wasn't willing to wait for the PB Blaster to work). But I'm sort of worried about the flex line to main chassis line. Cracked it open and pulled the axles. They hav...

cdnpont · cdnpont

I've thought it might of of interest to document my TH400 build, hopefully sparking some discussion around of what is best. Like my rear end build, the transmission was originally one of those things "Black art" and best thought as being left to the pro's. I have had very good success with my 12 bolt bui...

2drpost · 2drpost

i've had past inquires about parts and info, thought i'd post some info and pictures for those who have thoughts about yanking gears. keep in mind, this is chevrolet, cdn pontiac. starting with the pedals, '65-'70 pedals are basically the same. '65-'68 pedals have the clutch pedal stop angled towa...

4SPEED427 · 4SPEED427

I've decided to make an attempt at "tightening up" an original shifter for my 66. This is the same shifter body that was used in Canadian Pontiacs, Beaumonts, Acadians, numerous Chevrolets and I think maybe some Buicks prior to 1967. I have it all disassembled and need to order some parts for it. Fo...

dcneric · dcneric

As the subject heading asks. Does anyone have info on how many 396 and 427 cars were built? I can find that 10 2+2 convertibles came with a 427 but what about other applications. The VVS I got for my 69 396 2+2 only indicated that 1943 2+2 coupes were made but no power train break down.

cdnpont · cdnpont

So my 327 build has been sitting in dry heated storage for about 8 months now after having been run in on the stand for about an hour. Block drained of water. I've been thinking about it. Should I pull the plugs, give the cylinders each a shot of storage oil and crank it over a few times? Maybe until I see some...

cdnpont · cdnpont

In our place, For Carl,

BB-Acadian · BB-Acadian

I was fortunate to own a 66 Pontiac grande pariensene with an original 427 390HP in the late 80's. Like a doppy kid my desire was for the motor, not the car. In 1988, I pulled the 427 out, installed a 396 in the car and sold it to a guy who took it to Fort McMurray and have since heard the car is in Banff? The 42...

4SPEED427 · 4SPEED427

I am looking online to try to find the correct air cleaner decals for my 66. I can find the "Pontiac 427" decal but underneath it would be a"JET FLAME 427 390 HORSEPOWER" and it appears nobody reproduces that one. Has anyone ever seen the Jet Flame decal reproduced listing the 390 horsepower? I can only f...

cdnpont · cdnpont

Interesting eye opening topic from Team Chevelle,https://www.chevelles.com/forums/32-heating-cooling/1095108-exploding-fans.html

jim_ss409 · jim_ss409

http://www.348-409.com/forum/threads/1965-ss-impala-409-production-question.27541/#post-241319

Dave Rose · Dave Rose

Hurst Shifter I.DI bought a box of shifters-trying to i.d this one-I cleaned it up-it is very nice the tranny/linkage rods seem to be newer Hurst Competition Plus Stamping3138 stamping890242F stamping which I believe is date code August 1969 for the 1970 model yearWhat would be the value of this?An...

koolconvertible · koolconvertible

has anyone had a crack at fitting an electric power steering pump into there fullsize chev/pontiac? cheers!

cdnpont · cdnpont

So I'm contemplating building up the bare 12 bolt housing I have sitting. To go into the 65 post project. Need a winter project I guess. Reason being, I'd like to be rid of the 3 arm 10 bolt. I'd probably not even notice, but I'd still know it was there. Plus the 10 bolt is leaking like a sieve. The current gea...

ABC123 · ABC123

Say good bye to my "Dorky little pipe" This week I am upgrading to dual exhaust from the current low flow system. I have been told that this new free flowing system may not agree with my carburetor settings. I'm looking for thoughts from those whom had experience with a 2 barrel, dual exhaust set up. Th...

Bill shuba · Bill shuba

Hello all can you help me figure this motor out,,year ect any info will help thank you !! 618 block heads 441 Z ? front casting numbers 791155811 TO6I HM

Gmc guy · Gmc guy

Hi all. I am seeking the shift linkage for my 68. It is bolted to the body and the rod sits in a bushing. The rod goes across to the tranny shifter Linkage. The one I have does not have a bushing and my car starts in reverse even though the gear shift on the steering column is completely up in the park position....

4SPEED427 · 4SPEED427

I just had an interesting conversation with a friend who is a big follower of the L72 427's in 66 B bodies. He has documentation for one of his cars that is a Canadian car. When he mentioned that, it hit me that GM in those years documented the engines lumped together over both car lines. If you document a fu...

70Laurentian · 70Laurentian

Hi there, Ive got a 1970 Pontiac Laurentian and it seems to have a 2.56 10 bolt rear end. Does anyone know if this is an 8.2 or 8.5 corporate size rear? All help is appreciated

Topic		Started By	Replies	Views	Last Post
	STICKY: 65 B Body 4 speed conversion post. ( 1 2 3 ) (Preview) I figure I might try to document the conversion of the 65 Laurentian, from power glide to a 4 speed Muncie M20. I'll ad that Carl Stevenson has been a invaluable resource on this conversion, and has helped me out immensely. thanks Carl! And be sure to check out Dave's conversion post sticky as well. I'll...	cdnpont	66	1814	March 9th by 4SPEED427
	STICKY: Removal and rebuild of the 8.875" 12 bolt. ( 1 2 ) (Preview) It can be smooth when the bolts turn like new. Even the lines came undone. No rust. Drivers side needed the Vice Grip, but only just (because I wasn't willing to wait for the PB Blaster to work). But I'm sort of worried about the flex line to main chassis line. Cracked it open and pulled the axles. They hav...	cdnpont	41	2402	November 25th by cdnpont
	STICKY: TH400. Build post, ( 1 2 ) (Preview) I've thought it might of of interest to document my TH400 build, hopefully sparking some discussion around of what is best. Like my rear end build, the transmission was originally one of those things "Black art" and best thought as being left to the pro's. I have had very good success with my 12 bolt bui...	cdnpont	44	7144	Feb 20, 2019 by Bill shuba
	STICKY: '65-'70 AUTOMATIC TO MANUAL TRANS CONVERSION (Preview) i've had past inquires about parts and info, thought i'd post some info and pictures for those who have thoughts about yanking gears. keep in mind, this is chevrolet, cdn pontiac. starting with the pedals, '65-'70 pedals are basically the same. '65-'68 pedals have the clutch pedal stop angled towa...	2drpost	24	9212	Jul 10, 2018 by seventy2plus2
	67 and older 4 speed shifter restoration (Preview) I've decided to make an attempt at "tightening up" an original shifter for my 66. This is the same shifter body that was used in Canadian Pontiacs, Beaumonts, Acadians, numerous Chevrolets and I think maybe some Buicks prior to 1967. I have it all disassembled and need to order some parts for it. Fo...	4SPEED427	2	307	March 21st by timbuk
	1969 Full size 396 & 427 production, how many were made? (Preview) As the subject heading asks. Does anyone have info on how many 396 and 427 cars were built? I can find that 10 2+2 convertibles came with a 427 but what about other applications. The VVS I got for my 69 396 2+2 only indicated that 1943 2+2 coupes were made but no power train break down.	dcneric	18	1719	March 19th by 66 ponchoboy
	New engine. Sitting for 8 months. What to do? ( 1 2 ) (Preview) So my 327 build has been sitting in dry heated storage for about 8 months now after having been run in on the stand for about an hour. Block drained of water. I've been thinking about it. Should I pull the plugs, give the cylinders each a shot of storage oil and crank it over a few times? Maybe until I see some...	cdnpont	26	731	February 18th by Yukon man

	Got the 4 speed shifter in place in today, (Preview) In our place, For Carl,	cdnpont	7	238	January 31st by cdnpont
	1966 Pontiac Grande Parisienne -427 engine looking for the original car ( 1 2 3 4 5 ) (Preview) I was fortunate to own a 66 Pontiac grande pariensene with an original 427 390HP in the late 80's. Like a doppy kid my desire was for the motor, not the car. In 1988, I pulled the 427 out, installed a 396 in the car and sold it to a guy who took it to Fort McMurray and have since heard the car is in Banff? The 42...	BB-Acadian	101	16521	January 22nd by 4SPEED427
	66 Air Cleaner Decal 427 Jet Flame ( 1 2 3 4 ) (Preview) I am looking online to try to find the correct air cleaner decals for my 66. I can find the "Pontiac 427" decal but underneath it would be a"JET FLAME 427 390 HORSEPOWER" and it appears nobody reproduces that one. Has anyone ever seen the Jet Flame decal reproduced listing the 390 horsepower? I can only f...	4SPEED427	88	2073	January 5th by 4SPEED427
	Do you have an aftermarket Flex Fan? (Preview) Interesting eye opening topic from Team Chevelle,https://www.chevelles.com/forums/32-heating-cooling/1095108-exploding-fans.html	cdnpont	4	264	December 26th by long stroke
	The last 409 car? ( 1 2 ) (Preview) http://www.348-409.com/forum/threads/1965-ss-impala-409-production-question.27541/#post-241319	jim_ss409	43	4580	December 24th by 4SPEED427
	Hurst Shifter I.D..HELP! (Preview) Hurst Shifter I.DI bought a box of shifters-trying to i.d this one-I cleaned it up-it is very nice the tranny/linkage rods seem to be newer Hurst Competition Plus Stamping3138 stamping890242F stamping which I believe is date code August 1969 for the 1970 model yearWhat would be the value of this?An...	Dave Rose	5	293	December 23rd by Dave Rose
	Electricpower steering pump (Preview) has anyone had a crack at fitting an electric power steering pump into there fullsize chev/pontiac? cheers!	koolconvertible	9	429	December 22nd by Pontiacanada

	What axle ratio would you go with? (Preview) So I'm contemplating building up the bare 12 bolt housing I have sitting. To go into the 65 post project. Need a winter project I guess. Reason being, I'd like to be rid of the 3 arm 10 bolt. I'd probably not even notice, but I'd still know it was there. Plus the 10 bolt is leaking like a sieve. The current gea...	cdnpont	24	484	December 16th by unruhjonny
	2 barrel question ( 1 2 ) single to dual exhaust (Preview) Say good bye to my "Dorky little pipe" This week I am upgrading to dual exhaust from the current low flow system. I have been told that this new free flowing system may not agree with my carburetor settings. I'm looking for thoughts from those whom had experience with a 2 barrel, dual exhaust set up. Th...	ABC123	27	1155	December 14th by HK1837
	350 numbers (Preview) Hello all can you help me figure this motor out,,year ect any info will help thank you !! 618 block heads 441 Z ? front casting numbers 791155811 TO6I HM	Bill shuba	7	646	December 10th by HK1837
	1968 Parisienne shift linkage (Preview) Hi all. I am seeking the shift linkage for my 68. It is bolted to the body and the rod sits in a bushing. The rod goes across to the tranny shifter Linkage. The one I have does not have a bushing and my car starts in reverse even though the gear shift on the steering column is completely up in the park position....	Gmc guy	3	257	December 6th by seventy2plus2
	L72 66 Canadian Pontiacs (Preview) I just had an interesting conversation with a friend who is a big follower of the L72 427's in 66 B bodies. He has documentation for one of his cars that is a Canadian car. When he mentioned that, it hit me that GM in those years documented the engines lumped together over both car lines. If you document a fu...	4SPEED427	5	407	December 5th by 66 ponchoboy
	1970 Pontiac Laurentian Rear end determinations (Preview) Hi there, Ive got a 1970 Pontiac Laurentian and it seems to have a 2.56 10 bolt rear end. Does anyone know if this is an 8.2 or 8.5 corporate size rear? All help is appreciated	70Laurentian	2	250	November 27th by 70Laurentian
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