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

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...

68 Grande · 68 Grande

I just wanted to share my experience of my water pump rebuild by Winnipeg based AutoLine Products. I pulled this short necked water pump off the Grande's 396 at the time of rebuild and came to the conclusion that this pump must be the original factory pump. There was a little play in the bearing but the p...

cdnpont · cdnpont

Can you test shift, or bench shift a Muncie trans without a fill of oil? It only has sticky assembly lube on pretty much everything. Some oil on the gears. I'd heard somewhere that you shouldn't do it without the proper fill of lube. True?

4SPEED427 · 4SPEED427

So today Carl (68_Grande) sent me the copy of the powertrain chart he got with his GM documents. To me, the thinking is backwards on axle ratios between the 396 and 427. Why would the 427 need a steeper rear gear than a 396? More power, more torque on a 427 and yet they give it more gear? Why would you want...

mike667 · mike667

Alright guys, So the cooler months are ahead of us, and Im looking to be working on the car this winter in the garage. So for my 66 Pontiac, it comes with a 389 with AC. It does run, but does need a tune up badly. still seems to run smoothly though. 1)It only has a 2bbl carb on it currently... I do want to upgrade...

cdnpont · cdnpont

On a 65 B, what colour would a 4 speed bellhousing be paired with a 327? Chevrolet orange, or natural? Thanks, Mark

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...

cdnpont · cdnpont

I know it's been gone over before, but will all straight across bolt pattern starter motors work on a 153 tooth manual flywheel? More importantly, will the straight across style fit in the smaller bellhousing? Specifically a GM 3840383. Above all, do I need a straight across pattern starter with a sp...

cdnpont · cdnpont

So I'm rebuilding and setting up my 66 vintage Muncie 4 speed shifter mechanism. All the parts have been cleaned, zinc etched, and are just lightly oiled, polished smooth on the contact surfaces. Working now to shim it all in close, and align it to neutral. What lube would you use on it in the end? Certai...

seventy2plus2 · seventy2plus2

Yesterday I was at Flatla Auto Wrecking by Brooks AB and got a complete cruise control system from a 69 Parisienne. I'd been looking for the white hardtop the last couple times I was there, but wasn't able to find it. Upon stopping by the office when I was there a few weeks ago, they gave me better instru...

ABC123 · ABC123

Todd suggested I go see Tiny's in Ingersoll, ON A long time Canadian Poncho friend. Other people have told me he is the best small block Chev guy around. After seeing my car he suggested that the points have to go. The biggest problem he said is that no one makes a decent set of points any more. He said I woul...

Mondo Poncho · Mondo Poncho

I have one of our members at my place in the lower mainland near Vancouver. He drove across the country for one of my cars. Putting it together, we see that the rear differential has seized. Im trying to attach a picture with the cover open. Im wondering if anyone has any advice on how to get this thing roll...

cdnpont · cdnpont

https://www.gearvendors.com/product/manual-4-speed-muncie-m-202122-27-spline/

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

Riddler · Riddler

Hi, i have a 67 Parisienne with a 283. Recently when i unplugged one of the spark wires from the distributor, i noticed the gromet came off with the wire (pictured) Is there a way to fix this? If i need a new cap, does anyone recognize this kind of distributor? Thanks -- Edited by Riddler on Friday 28th of Ju...

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...

oshawacliff · oshawacliff

400HP unit part #30003 https://fitechefi.com/ There is a $150.00 off deal..... peaked my interest. I have been getting terrible gas mileage with my 350 Crate in my Impala. I am running hei distributor. edelbrock intake and a edelbrock 1405 carb Use cruise control on the highway above 40 mph. No...

396 Big Block · 396 Big Block

Hi All, Im new to this forum and very excited to check it out. I am in the process of purchasing a 71 Acadian SS in fantastic shape. Theres not a lot of info on this model so let me describe it to you all 71 Acadian SS 396 BBC (72 Block), M22,373 Posi, 31Spline Axles, aftermarket Intake and carb, Gun Metal grey...

Topic		Started By	Replies	Views	Last Post
	STICKY: 65 B Body 4 speed conversion post. (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	24	660	October 29th 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	6655	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	8852	Jul 10, 2018 by seventy2plus2
	68 Water Pump Re-build (Preview) I just wanted to share my experience of my water pump rebuild by Winnipeg based AutoLine Products. I pulled this short necked water pump off the Grande's 396 at the time of rebuild and came to the conclusion that this pump must be the original factory pump. There was a little play in the bearing but the p...	68 Grande	13	161	8 days ago by 68 Grande
	Can you safely dry shift a Muncie? (Preview) Can you test shift, or bench shift a Muncie trans without a fill of oil? It only has sticky assembly lube on pretty much everything. Some oil on the gears. I'd heard somewhere that you shouldn't do it without the proper fill of lube. True?	cdnpont	2	161	9 days ago by cdnpont
	68 Powertrain Axle Chart (Preview) So today Carl (68_Grande) sent me the copy of the powertrain chart he got with his GM documents. To me, the thinking is backwards on axle ratios between the 396 and 427. Why would the 427 need a steeper rear gear than a 396? More power, more torque on a 427 and yet they give it more gear? Why would you want...	4SPEED427	13	140	10 days ago by 73SC
	Pontiac 389: Where to Start? (Preview) Alright guys, So the cooler months are ahead of us, and Im looking to be working on the car this winter in the garage. So for my 66 Pontiac, it comes with a 389 with AC. It does run, but does need a tune up badly. still seems to run smoothly though. 1)It only has a 2bbl carb on it currently... I do want to upgrade...	mike667	5	130	October 22nd by Prefectca

	4 speed Bellhousing; colour question. (Preview) On a 65 B, what colour would a 4 speed bellhousing be paired with a 327? Chevrolet orange, or natural? Thanks, Mark	cdnpont	9	213	October 19th by 4SPEED427
	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	26	780	October 18th by Glenn Musgrave
	Starter motor question; for 153 tooth, manual. (Preview) I know it's been gone over before, but will all straight across bolt pattern starter motors work on a 153 tooth manual flywheel? More importantly, will the straight across style fit in the smaller bellhousing? Specifically a GM 3840383. Above all, do I need a straight across pattern starter with a sp...	cdnpont	9	177	October 14th by 4SPEED427
	Muncie 4 speed shifter, what to lube with? (Preview) So I'm rebuilding and setting up my 66 vintage Muncie 4 speed shifter mechanism. All the parts have been cleaned, zinc etched, and are just lightly oiled, polished smooth on the contact surfaces. Working now to shim it all in close, and align it to neutral. What lube would you use on it in the end? Certai...	cdnpont	6	193	October 11th by cdnpont
	What a score!! a COMPLETE cruise control system from a 69 Parisienne (Preview) Yesterday I was at Flatla Auto Wrecking by Brooks AB and got a complete cruise control system from a 69 Parisienne. I'd been looking for the white hardtop the last couple times I was there, but wasn't able to find it. Upon stopping by the office when I was there a few weeks ago, they gave me better instru...	seventy2plus2	15	287	October 7th by seventy2plus2
	"Get the points out" SB 350 question (Preview) Todd suggested I go see Tiny's in Ingersoll, ON A long time Canadian Poncho friend. Other people have told me he is the best small block Chev guy around. After seeing my car he suggested that the points have to go. The biggest problem he said is that no one makes a decent set of points any more. He said I woul...	ABC123	22	564	September 21st by Taylor55
	Need quick fix or replacement for seized differential. Help appreciated (Preview) I have one of our members at my place in the lower mainland near Vancouver. He drove across the country for one of my cars. Putting it together, we see that the rear differential has seized. Im trying to attach a picture with the cover open. Im wondering if anyone has any advice on how to get this thing roll...	Mondo Poncho	6	260	September 2nd by Mondo Poncho

	Gear Vendors Overdrive, on a Muncie M20 (Preview) https://www.gearvendors.com/product/manual-4-speed-muncie-m-202122-27-spline/	cdnpont	6	496	August 21st by dualquadpete
	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	6	371	July 20th by Bill shuba
	Recognize this distributor (Preview) Hi, i have a 67 Parisienne with a 283. Recently when i unplugged one of the spark wires from the distributor, i noticed the gromet came off with the wire (pictured) Is there a way to fix this? If i need a new cap, does anyone recognize this kind of distributor? Thanks -- Edited by Riddler on Friday 28th of Ju...	Riddler	4	309	July 17th by Riddler
	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	100	15833	July 15th by MC
	Considering EFI Tech 400 hp unit any feedback appreciated (Preview) 400HP unit part #30003 https://fitechefi.com/ There is a $150.00 off deal..... peaked my interest. I have been getting terrible gas mileage with my 350 Crate in my Impala. I am running hei distributor. edelbrock intake and a edelbrock 1405 carb Use cruise control on the highway above 40 mph. No...	oshawacliff	6	368	July 1st by koolconvertible
	71 Acadian SS (Preview) Hi All, Im new to this forum and very excited to check it out. I am in the process of purchasing a 71 Acadian SS in fantastic shape. Theres not a lot of info on this model so let me describe it to you all 71 Acadian SS 396 BBC (72 Block), M22,373 Posi, 31Spline Axles, aftermarket Intake and carb, Gun Metal grey...	396 Big Block	6	318	June 4th by seventy2plus2
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