65-70 Full Size Power Train Tech Forum

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 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...

oshawacliff · oshawacliff

STREET FEATUREThis Big-Block Pro-Street '76 Pontiac Stands Out In A Crowd! A multi-time World of Wheels winner, this 1976 Firebird was constructed in the early 1980s. Since completion it has only been driven about 200-250 miles and still looks like it's show-ready. This bird is equipped with a C...

LT1Caddy · LT1Caddy

Is there anyone who overhauls Muncie shifters? Can you install a Hurst shift handle on a Muncie? Answer my own question Duh... Yes someone makes a conversion attachment THX -- Edited by LT1Caddy on Saturday 13th of November 2021 09:48:06 PM

cdnpont · cdnpont

On the 65 over the last while, when I've been out driving on the highway at any length of time, at, say 2300 RPM sustained, a rattle at the back starts. Starts quiet, not constant then becomes louder and all the time. Sounds like it's near the right rear tire. Travels right through the body and it's alarmi...

70 SS ACADIAN · 70 SS ACADIAN

So I have the 4 bolt block, 858 square port heads, 6223 crank, dimple rods and factory 069 intake. What I have to figure out is what pistons , cam and lifters to go with? Obviously cant go with the factory specs solid lifters and high dome pistons have to be able to drive this thing on todays gas

cdnpont · cdnpont

The 327 is needing it's first oil change. Still has the Lucas break in high zinc oil in it, along with half a bottle of Comp break in additive. I took no chances on the cam break in, and it appears to have worked just fine. I have a high volume oil pump, no bypass filter adapter, and will always run a no bypass...

cdnpont · cdnpont

Debugging the 65, So I'm getting a frustrating clicking noise at the speedometer head or the top section of the cable. The speedometer needle is bouncing and vibrating mostly at lower speeds. Was a new cable at the rebuild. I've had the drive cable out twice, have cleaned and lubed it with white lithiu...

MoboMac · MoboMac

Looking at a 67 Canadian full size....and seller claims it's a 327...from previous owner But I also know that alot of 283's become 327's (magically)...when car is for sale...... I need to know a quick and simple way to determine engine size..... The pictures I saw show an oil fill pipe in cast iron int...

cdnpont · cdnpont

SGS Welding · SGS Welding

If the factory produced 2 67 B body cars and car 1 had a 283 power glide and a 10 bolt rear axle and car 2 had a 327 power glide and a 12 bolt rear axle are the driveshafts the EXACT same length? or is 12 bolt car slightly shorter? thanks

SGS Welding · SGS Welding

Did GM have multiple different governors for different vehicles and rear end ratios? Im thinking they would but Im not finding much about it on the net which seems a little Wierd?? Im thinking a Corvette governor MUST be different than one for an RV or truck? Just looking for insight from someone in the...

4SPEED427 · 4SPEED427

Every so often an oddball little part is still available from GM for our old cars. This is one of them. I ordered it last week because I didn't like a piece of straight bulk PCV hose, it takes too big an area to get from the carb to the PCV valve in the left valve cover. This hose, as you can see, has a nice molded...

SGS Welding · SGS Welding

Anyone know if GM still sells these new? I need one that is 27 inches long thanks

cdnpont · cdnpont

In my 65, I have my old 67 327/275. the Qjet was pro rebuilt about 10 years ago. In shuttling the car around (not on the road yet), today, for the first time it started running poor. Started just fine, but ran like it was short a cylinder of two, which surprised me, as it always started right up, ran and idled...

SGS Welding · SGS Welding

What vehicles or vehicle could I get shift linkage parts from to make this work? Or do I just fab something? What is your experience? advice? Thanks !

SGS Welding · SGS Welding

67 Parisienne water pump is leaking parts store is asking some Wierd questions its a sbc short water pump has the big outlet to the rad and 1 heater hose attached just above that what part number do I need to save myself some grief? thanks guys Greg

Topic		Started By	Replies	Views	Last Post
	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	1413	Apr 2, 2021 by bjburnout
	STICKY: 65 B Body 4 speed conversion post. ( 1 2 3 4 ) (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	89	5762	Mar 28, 2021 by cdnpont
	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	58	5269	Jan 31, 2021 by jduffett
	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	9239	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	10315	Jul 10, 2018 by seventy2plus2
	Anybody into 76 Firebirds (Preview) STREET FEATUREThis Big-Block Pro-Street '76 Pontiac Stands Out In A Crowd! A multi-time World of Wheels winner, this 1976 Firebird was constructed in the early 1980s. Since completion it has only been driven about 200-250 miles and still looks like it's show-ready. This bird is equipped with a C...	oshawacliff	3	153	2 days ago by 65Camino
	Muncie shifter overhaul... (Preview) Is there anyone who overhauls Muncie shifters? Can you install a Hurst shift handle on a Muncie? Answer my own question Duh... Yes someone makes a conversion attachment THX -- Edited by LT1Caddy on Saturday 13th of November 2021 09:48:06 PM	LT1Caddy	5	160	November 14th by LT1Caddy

	Hearing a rattle...hmm. (Preview) On the 65 over the last while, when I've been out driving on the highway at any length of time, at, say 2300 RPM sustained, a rattle at the back starts. Starts quiet, not constant then becomes louder and all the time. Sounds like it's near the right rear tire. Travels right through the body and it's alarmi...	cdnpont	1	153	November 10th by oshawacliff
	1966 L72 427 build (Preview) So I have the 4 bolt block, 858 square port heads, 6223 crank, dimple rods and factory 069 intake. What I have to figure out is what pistons , cam and lifters to go with? Obviously cant go with the factory specs solid lifters and high dome pistons have to be able to drive this thing on todays gas	70 SS ACADIAN	9	292	November 9th by DANO65
	Oil questions (Preview) The 327 is needing it's first oil change. Still has the Lucas break in high zinc oil in it, along with half a bottle of Comp break in additive. I took no chances on the cam break in, and it appears to have worked just fine. I have a high volume oil pump, no bypass filter adapter, and will always run a no bypass...	cdnpont	18	440	October 20th by cdnpont
	Noise. Speedometer or cable? (Preview) Debugging the 65, So I'm getting a frustrating clicking noise at the speedometer head or the top section of the cable. The speedometer needle is bouncing and vibrating mostly at lower speeds. Was a new cable at the rebuild. I've had the drive cable out twice, have cleaned and lubed it with white lithiu...	cdnpont	21	308	October 20th by 65Camino
	67 327 engine ID (Preview) Looking at a 67 Canadian full size....and seller claims it's a 327...from previous owner But I also know that alot of 283's become 327's (magically)...when car is for sale...... I need to know a quick and simple way to determine engine size..... The pictures I saw show an oil fill pipe in cast iron int...	MoboMac	16	381	October 19th by MoboMac
	66 Bolt, (Preview)	cdnpont	0	155	October 10th by cdnpont
	Driveshaft length question (Preview) If the factory produced 2 67 B body cars and car 1 had a 283 power glide and a 10 bolt rear axle and car 2 had a 327 power glide and a 12 bolt rear axle are the driveshafts the EXACT same length? or is 12 bolt car slightly shorter? thanks	SGS Welding	6	250	October 8th by 65Camino

	Turbo 350 transmission question? (Preview) Did GM have multiple different governors for different vehicles and rear end ratios? Im thinking they would but Im not finding much about it on the net which seems a little Wierd?? Im thinking a Corvette governor MUST be different than one for an RV or truck? Just looking for insight from someone in the...	SGS Welding	2	222	October 1st by North
	GM Big Block PCV Hose Still Available New ( 1 2 ) (Preview) Every so often an oddball little part is still available from GM for our old cars. This is one of them. I ordered it last week because I didn't like a piece of straight bulk PCV hose, it takes too big an area to get from the carb to the PCV valve in the left valve cover. This hose, as you can see, has a nice molded...	4SPEED427	35	1737	September 23rd by 4SPEED427
	Turbo 350 transmission dipstick (Preview) Anyone know if GM still sells these new? I need one that is 27 inches long thanks	SGS Welding	0	160	September 21st by SGS Welding
	QJet issue? (Preview) In my 65, I have my old 67 327/275. the Qjet was pro rebuilt about 10 years ago. In shuttling the car around (not on the road yet), today, for the first time it started running poor. Started just fine, but ran like it was short a cylinder of two, which surprised me, as it always started right up, ran and idled...	cdnpont	17	446	September 20th by 4SPEED427
	Powerfulglide to thm350 column shift linkage (Preview) What vehicles or vehicle could I get shift linkage parts from to make this work? Or do I just fab something? What is your experience? advice? Thanks !	SGS Welding	2	190	September 16th by SGS Welding
	Water pump (Preview) 67 Parisienne water pump is leaking parts store is asking some Wierd questions its a sbc short water pump has the big outlet to the rad and 1 heater hose attached just above that what part number do I need to save myself some grief? thanks guys Greg	SGS Welding	4	352	August 27th by Prefectca
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