65-70 Full Size Power Train Tech Forum

4SPEED427 · 4SPEED427

So a site member and I were talking about him doing a big block swap on his 66 Grande Parisienne, (currently a small block). He said when the time came he would be asking me about certain things he was unsure of that may be required for the conversion. That triggered the idea to do a big block swap thread. I w...

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...

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...

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...

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...

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...

66 Grande guy · 66 Grande guy

Hi guys I pulled this out of a 67 Pontiac GP lately but have no plans for it myself at the moment. It was not original to the car but the date code on the intake indicates it is a 1967 build and the engine number indicates it came with a Turbo 400 which is still attached. The engine/ tranny is very very complete...

ABC123 · ABC123

My fuel pump as blown out internaly. The gas is pushing out the relief holes. I can't find the part number for a 3 line pump. Rock Auto only lists 2 line pumps, Any help ?

papapontiac · papapontiac

Hi Guys, Can anyone tell me which port would receive the vac advance hose from the distributor? I am using an edelbrock 1406 carb and running a 350 on my 1969 2+2. Should the vac advance hose go to the ported/timed vacuum or manifold vacuum port on the carburetor? Thanks

4SPEED427 · 4SPEED427

Does anyone have these Cherry Bomb Oval mufflers on a B body without headers? I will need to replace the mufflers on my Strato Chief, one has a small rust hole in it. I don't want too loud but I don't want stock-quiet either. And I'm asking specifically for cars with manifolds, not headers because tha...

Westhewelder · Westhewelder

Hey guys just picked up a 350 for 100$ to add a bit more hp to the parisienne and was wondering if there's some gurus out there. It's a 2 bolt main tbi I got it in boxes which is fine. Looks like it needs new crank bearings and the cam bearings are fine, no visible cracking that I can see. Everything looks pret...

cdnpont · cdnpont

HI guys! Hope everyone is enjoying the summer. Needing a new pump to carb line for the 69 350 2V. Rubber line before and after he in line aftermarket filter, and the line after the filter blew today while sitting waiting to go. Very lucky I didn't burn the car down. Gas basically poured all down the engin...

4SPEED427 · 4SPEED427

When I rebuilt my 427 a few years ago, I wanted an original looking fuel pump but wasn't eager to pay the price for NOS. The fittings on the 66 pump didn't carry over into 67, so in Canada it was a unique pump. I think the US cars with a 396 in 65 used the 66 style pump but of course we never had them here. I bought...

papapontiac · papapontiac

Hi Guys, Working on my 1969 2+2 convertible and could always use some help. I am changing the intake and carburetor...from the cast iron to a Weiand 8004 and from the old 2 bbl Rochester to a 4 bbl Edelbrock 1406. I am doing my research but I would appreciate it if anyone has any suggestions/resource...

4SPEED427 · 4SPEED427

https://www.speedwaymotors.com/Speedway-Steel-Mechanical-Cooling-Fan,332310.html

LandShark68_2+2 · LandShark68_2+2

Hi guys, I got the expected bad news today that my THM400 in my 68 2+2 with a 396, needs to be rebuilt. I've talked to several shops here in London and few, if any, want to take it on. Has anyone had any luck with rebuilders in southwestern Ontario? Preferably, I'd like to take the car to wherever, have them d...

4SPEED427 · 4SPEED427

I learned again today, never say never.... My friend is working on a car with a 454 that kept breaking starter noses, and I mean breaking them completely. I stopped at his shop today to say hi and he showed me something I've never seen. So of course a 454 using an externally balanced flexplate. He showe...

4SPEED427 · 4SPEED427

In the past we've had some discussion about which cars came with 12 bolts and why. There not be any new info in here for anyone reading this because of previous discussions about it but I'm hoping someone might have some new info. Some people theorize at least 327 cubic inches, others say at least a V8 and...

Gmtechchris · Gmtechchris

Does anyone have a 65 specific big block radiator and shroud with spacer hanging around? Looking for one currently. Or else any suggestion for a really good replacement radiator , preferably aluminium that will correctly fit without modification. Preferably a radiator that has inlet and outlet...

Gmtechchris · Gmtechchris

Does anyone have a picture and possibly a part number for which air cleaner would of come on a 65 396 parisienne? Non AC car. Thanks

Topic		Started By	Replies	Views	Last Post
	STICKY: Big block conversion thread (Preview) So a site member and I were talking about him doing a big block swap on his 66 Grande Parisienne, (currently a small block). He said when the time came he would be asking me about certain things he was unsure of that may be required for the conversion. That triggered the idea to do a big block swap thread. I w...	4SPEED427	21	358	September 10th by 1966-Grande-paris
	STICKY: 65 B Body 4 speed conversion post. ( 1 2 3 4 5 … 6 ) (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	131	14472	Dec 13, 2023 by cdnpont
	STICKY: '65-'70 AUTOMATIC TO MANUAL TRANS CONVERSION ( 1 2 ) (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	32	13804	Nov 22, 2022 by seventy2plus2
	STICKY: Removal and rebuild of the 8.875" 12 bolt. ( 1 2 3 ) (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	60	13418	Feb 16, 2022 by seventy2plus2
	STICKY: 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	10	3470	Apr 2, 2021 by bjburnout
	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	14553	Feb 20, 2019 by Bill shuba
	Need an Unbiased Opinion on how much this 396/400 turbo is worth ( 1 2 ) (Preview) Hi guys I pulled this out of a 67 Pontiac GP lately but have no plans for it myself at the moment. It was not original to the car but the date code on the intake indicates it is a 1967 build and the engine number indicates it came with a Turbo 400 which is still attached. The engine/ tranny is very very complete...	66 Grande guy	36	396	21h ago by Shrike
Fall into savings UP TO C $50 OFF Shop now
	1969 427 fuel pump, AC part Number ? 3 lines (Preview) My fuel pump as blown out internaly. The gas is pushing out the relief holes. I can't find the part number for a 3 line pump. Rock Auto only lists 2 line pumps, Any help ?	ABC123	9	107	8 days ago by seventy2plus2
	Vacuum advance to which port (Preview) Hi Guys, Can anyone tell me which port would receive the vac advance hose from the distributor? I am using an edelbrock 1406 carb and running a 350 on my 1969 2+2. Should the vac advance hose go to the ported/timed vacuum or manifold vacuum port on the carburetor? Thanks	papapontiac	2	139	12 days ago by papapontiac
	Cherry Bomb Turbo Mufflers? (Preview) Does anyone have these Cherry Bomb Oval mufflers on a B body without headers? I will need to replace the mufflers on my Strato Chief, one has a small rust hole in it. I don't want too loud but I don't want stock-quiet either. And I'm asking specifically for cars with manifolds, not headers because tha...	4SPEED427	1	136	October 12th by 73SC
	New engine build (Preview) Hey guys just picked up a 350 for 100$ to add a bit more hp to the parisienne and was wondering if there's some gurus out there. It's a 2 bolt main tbi I got it in boxes which is fine. Looks like it needs new crank bearings and the cam bearings are fine, no visible cracking that I can see. Everything looks pret...	Westhewelder	5	197	October 9th by Westhewelder
	Pump to Carb line, from who, or DIY? ( 1 2 ) (Preview) HI guys! Hope everyone is enjoying the summer. Needing a new pump to carb line for the 69 350 2V. Rubber line before and after he in line aftermarket filter, and the line after the filter blew today while sitting waiting to go. Very lucky I didn't burn the car down. Gas basically poured all down the engin...	cdnpont	28	717	October 1st by DonSSDD
	1966 Fuel Pump for 396 or 427 ( 1 2 3 ) (Preview) When I rebuilt my 427 a few years ago, I wanted an original looking fuel pump but wasn't eager to pay the price for NOS. The fittings on the 66 pump didn't carry over into 67, so in Canada it was a unique pump. I think the US cars with a 396 in 65 used the 66 style pump but of course we never had them here. I bought...	4SPEED427	50	3001	September 30th by 4SPEED427
	1969 2+2 convertible - Upgrade intake and carburetor (Preview) Hi Guys, Working on my 1969 2+2 convertible and could always use some help. I am changing the intake and carburetor...from the cast iron to a Weiand 8004 and from the old 2 bbl Rochester to a 4 bbl Edelbrock 1406. I am doing my research but I would appreciate it if anyone has any suggestions/resource...	papapontiac	22	293	September 29th by papapontiac
Fall into savings UP TO C $50 OFF Shop now
	6 blade solid fan (Preview) https://www.speedwaymotors.com/Speedway-Steel-Mechanical-Cooling-Fan,332310.html	4SPEED427	4	145	September 23rd by beaumontguru
	THM400 Rebuild Options in SWO (Preview) Hi guys, I got the expected bad news today that my THM400 in my 68 2+2 with a 396, needs to be rebuilt. I've talked to several shops here in London and few, if any, want to take it on. Has anyone had any luck with rebuilders in southwestern Ontario? Preferably, I'd like to take the car to wherever, have them d...	LandShark68_2+2	20	358	September 19th by CdnGMfan
	GM Flexplates (Preview) I learned again today, never say never.... My friend is working on a car with a 454 that kept breaking starter noses, and I mean breaking them completely. I stopped at his shop today to say hi and he showed me something I've never seen. So of course a 454 using an externally balanced flexplate. He showe...	4SPEED427	7	249	August 24th by 4SPEED427
	65-66 Pontiac 12 bolt diffs ( 1 2 ) (Preview) In the past we've had some discussion about which cars came with 12 bolts and why. There not be any new info in here for anyone reading this because of previous discussions about it but I'm hoping someone might have some new info. Some people theorize at least 327 cubic inches, others say at least a V8 and...	4SPEED427	28	1486	August 12th by timbuk
	1965 big block radiator and shroud (Preview) Does anyone have a 65 specific big block radiator and shroud with spacer hanging around? Looking for one currently. Or else any suggestion for a really good replacement radiator , preferably aluminium that will correctly fit without modification. Preferably a radiator that has inlet and outlet...	Gmtechchris	1	213	August 9th by 4SPEED427
	1965 396 air cleaner (Preview) Does anyone have a picture and possibly a part number for which air cleaner would of come on a 65 396 parisienne? Non AC car. Thanks	Gmtechchris	9	436	August 3rd by CdnGMfan
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