65-70 Full Size Power Train Tech Forum

cdnpont · cdnpont

Question; Can one change a SBC 2 piece seal with the engine in place, in a 65 B Body? I have just detected a small drip in the 65. Don't think its the pan. If it stays this small I'll not worry too much. Second, Will this wee drip eventually foul my clutch?

koolconvertible · koolconvertible

So installed new diff. On removing driveshaft, the uni at the diff was tight. Removed and has strange wear patterns. How do you adjust the pinion angle on the 65s when they have a 4 link rear?? Cheers

cdnpont · cdnpont

Was there ever such a thing as a 3.23 ring and pinion for a 8.875" 12 bolt? The reason I ask, is in my thinking, it would be a great on road compromise ratio for a big car with a M20. And I'll be building a 4 leg 12 bolt for my 65 and already have an good open 3.08 carrier. My current 10 bolt has a 3.36 since it was a s...

Junkyard James · Junkyard James

First Time Post: Long story short, I have taken on a friends son's first car restoration. 65 Pontiac Parisienne Convertible. My question goes out to all you Pontiac full size experts. I would like to know exactly what I am working with before I start. MUCH appreciate any assistance you can provide me f...

Macker · Macker

I decided after having some issues with the plugs fouling in cylinders 5,8 and a bit of a choppy idle i would have the heads pulled as the engine has never been touched. Compression was tested and strong at 175 and 180 across all cylinders and the engine was running pretty well overall, I was pretty optim...

koolconvertible · koolconvertible

the diff breather for the diff I am putting in, seems to have come out and disappeared, never to be seen again. Any suggestions on what I could use? I could always use the one out of the diff which is in the car at the moment, but prefer not to. Cheers all!

Oldreliable · Oldreliable

Had anyone had an issue with finding the correct size u-jojnt? I have a 69 Gto convertible w/4 speed Muncie. It was originally an automatic. I ordered a pair of u joints, they were too big. New joints had 1.125" cups, mine are 1.060". I checked other 69 pontiac models and found the firebird had the size I n...

cdnpont · cdnpont

Here's an important tip for those choosing to use an aluminum rad for running up an engine on a stand. Use coolant, Never straight water. I used straight water. Drained it after testing the engine, but left it on the test stand hoses still connected. The residual water left in the bottom tank caused pin...

koolconvertible · koolconvertible

very curious why my vert has 3.07 ratio diff as apposed to what is in all aussie built b bodies which is 3.55. Maybe because it was assembled in canada? Anywho, explains why it has terrible launch and is a bit uninspiring planting the boot even though it has the big block But is fantastic for a long high spe...

cdnpont · cdnpont

Ready to move into finishing the cooling on the 65. I had mocked up the aluminum rad on the large 67 spacer, and the fan sits really close to the rad. Close in like just a little bit better than 1/4" Might be able to gain a little more when everything gets bolted in. Still have to add tabs to the spacer to accom...

flatop · flatop

i cant find the number for this manifold any where. Date code is K 6 7. so im thinking 1967 # is 3746833 GM 2 XF-1028 Thanks Percy PICS ADDED NOW it is a 4 bbl with 4 small holes -- Edited by flatop on Wednesday 26th of August 2020 01:...

cdnpont · cdnpont

On a 65 CP 327 300HP V8, where and how would the tips exit if they extended all the way to the back? Would they look and be positioned similar to the 65 Impala seen below, less resonators? The pipes I have kind of exit a little way back from the WW opening. Stealthy. It might grow on me leaving them this way (o...

SGS Welding · SGS Welding

67 Quadrajet The accelerator pump works once or twice then it hangs up halfway during the upstroke it gets stuck halfway then pops back to its ready position? need a new rubber? something to do with the checkball? Any help appreciated Im very green with carbureters Thanks Greg

SGS Welding · SGS Welding

Does anyone know the G M part number for a quality 180 thermostat the guys in my local dealership tell me they just get them from car quest for those old engines lol this needs to fit a small block Chevy thanks Greg

Riddler · Riddler

Driver side under carburator. What part is this? It's leaking oil

cdnpont · cdnpont

Got the exhaust system home after a very nice drive along 7 to Carlton place, and back home to the Kawartha's, north through Arnprior, Renfrew and Bancroft. Beautiful scenery, some eastern towns not yet seen, and the roads were actually pretty quiet. System is in very good shape so it seems to have bee...

Hobbes · Hobbes

Hi all, I have a 1965 standard (3 on the tree) I have a clutch question. When I start out in the morning the clutch engages quite nicely but as things heat up it tends to shutter going into gear. The whole car vibrates quite intensely. When I increase the RPM it overcomes this but its not really what I want to...

gparis7 · gparis7

I need to have a concours quality rebuild of my Quadrajet carb. I've been looking online but can't seem to find out who is who in this business. There was a company called Carburetor Rebuilders on Eugene St. In Oshawa. Are they still in business and recommended? There is also a company in Oshawa called...

seventy2plus2 · seventy2plus2

I had my engine built in 2006, and chose an entire valve train from Comp Cams. I actually picked it up from Year One just outside Atlanta while in the area visiting family. From the start I had weak vacuum, resulting in non-working power brakes. I've tried a few things, including changing the intake...

flatop · flatop

1968 327 replacement,truck engine.piston number is 3796494.cant find any info on it.What im looking for is the pluc cc' measurement to use for calculating compression as I have a set of 58 cc' heads and don't want to be too high. thanks percy why are the rods red?

Topic		Started By	Replies	Views	Last Post
	SBC Main seal question, (Preview) Question; Can one change a SBC 2 piece seal with the engine in place, in a 65 B Body? I have just detected a small drip in the 65. Don't think its the pan. If it stays this small I'll not worry too much. Second, Will this wee drip eventually foul my clutch?	cdnpont	3	821	Nov 13, 2020 by cdnpont
	Pinion angle (Preview) So installed new diff. On removing driveshaft, the uni at the diff was tight. Removed and has strange wear patterns. How do you adjust the pinion angle on the 65s when they have a 4 link rear?? Cheers	koolconvertible	6	1062	Nov 2, 2020 by cdnpont
	12 bolt ratios. Availability question. (Preview) Was there ever such a thing as a 3.23 ring and pinion for a 8.875" 12 bolt? The reason I ask, is in my thinking, it would be a great on road compromise ratio for a big car with a M20. And I'll be building a 4 leg 12 bolt for my 65 and already have an good open 3.08 carrier. My current 10 bolt has a 3.36 since it was a s...	cdnpont	12	904	Oct 30, 2020 by cdnpont
	65 Pontiac Parisienne Convertible Identification Help (Preview) First Time Post: Long story short, I have taken on a friends son's first car restoration. 65 Pontiac Parisienne Convertible. My question goes out to all you Pontiac full size experts. I would like to know exactly what I am working with before I start. MUCH appreciate any assistance you can provide me f...	Junkyard James	10	1151	Oct 29, 2020 by Junkyard James
	Engine pulled and heads rebuilt on Pontiac after 50 years (Preview) I decided after having some issues with the plugs fouling in cylinders 5,8 and a bit of a choppy idle i would have the heads pulled as the engine has never been touched. Compression was tested and strong at 175 and 180 across all cylinders and the engine was running pretty well overall, I was pretty optim...	Macker	4	964	Oct 15, 2020 by 73SC
	Lost the diff breather (Preview) the diff breather for the diff I am putting in, seems to have come out and disappeared, never to be seen again. Any suggestions on what I could use? I could always use the one out of the diff which is in the car at the moment, but prefer not to. Cheers all!	koolconvertible	2	1077	Sep 21, 2020 by 4SPEED427
	69 GTO U-joints (Preview) Had anyone had an issue with finding the correct size u-jojnt? I have a 69 Gto convertible w/4 speed Muncie. It was originally an automatic. I ordered a pair of u joints, they were too big. New joints had 1.125" cups, mine are 1.060". I checked other 69 pontiac models and found the firebird had the size I n...	Oldreliable	4	1077	Sep 15, 2020 by North

	Aluminum Rad...lesson learned. (Preview) Here's an important tip for those choosing to use an aluminum rad for running up an engine on a stand. Use coolant, Never straight water. I used straight water. Drained it after testing the engine, but left it on the test stand hoses still connected. The residual water left in the bottom tank caused pin...	cdnpont	19	1510	Sep 11, 2020 by hawkeye5766
	Diff sizes aussie full size (Preview) very curious why my vert has 3.07 ratio diff as apposed to what is in all aussie built b bodies which is 3.55. Maybe because it was assembled in canada? Anywho, explains why it has terrible launch and is a bit uninspiring planting the boot even though it has the big block But is fantastic for a long high spe...	koolconvertible	12	1206	Sep 3, 2020 by long stroke
	Can a cooling fan be too close to a radiator? (Preview) Ready to move into finishing the cooling on the 65. I had mocked up the aluminum rad on the large 67 spacer, and the fan sits really close to the rad. Close in like just a little bit better than 1/4" Might be able to gain a little more when everything gets bolted in. Still have to add tabs to the spacer to accom...	cdnpont	8	1001	Sep 2, 2020 by oshawacliff
	intake manifold help id PICS ADDED (Preview) i cant find the number for this manifold any where. Date code is K 6 7. so im thinking 1967 # is 3746833 GM 2 XF-1028 Thanks Percy PICS ADDED NOW it is a 4 bbl with 4 small holes -- Edited by flatop on Wednesday 26th of August 2020 01:...	flatop	18	1106	Sep 1, 2020 by cranks38
	1965 B body tailpipe exit question. Opinion. (Preview) On a 65 CP 327 300HP V8, where and how would the tips exit if they extended all the way to the back? Would they look and be positioned similar to the 65 Impala seen below, less resonators? The pipes I have kind of exit a little way back from the WW opening. Stealthy. It might grow on me leaving them this way (o...	cdnpont	15	853	Aug 30, 2020 by CdnGMfan
	Quadrajet accelerator valve sticking (Preview) 67 Quadrajet The accelerator pump works once or twice then it hangs up halfway during the upstroke it gets stuck halfway then pops back to its ready position? need a new rubber? something to do with the checkball? Any help appreciated Im very green with carbureters Thanks Greg	SGS Welding	9	977	Aug 20, 2020 by unruhjonny
	180 thermostat (Preview) Does anyone know the G M part number for a quality 180 thermostat the guys in my local dealership tell me they just get them from car quest for those old engines lol this needs to fit a small block Chevy thanks Greg	SGS Welding	6	991	Aug 12, 2020 by SGS Welding

	'67 283 oil leak (Preview) Driver side under carburator. What part is this? It's leaking oil	Riddler	5	1231	Aug 8, 2020 by jmont64
	Got the pipes home. Now Questions. (Preview) Got the exhaust system home after a very nice drive along 7 to Carlton place, and back home to the Kawartha's, north through Arnprior, Renfrew and Bancroft. Beautiful scenery, some eastern towns not yet seen, and the roads were actually pretty quiet. System is in very good shape so it seems to have bee...	cdnpont	5	1067	Jul 30, 2020 by seventy2plus2
	Clutch question? (Preview) Hi all, I have a 1965 standard (3 on the tree) I have a clutch question. When I start out in the morning the clutch engages quite nicely but as things heat up it tends to shutter going into gear. The whole car vibrates quite intensely. When I increase the RPM it overcomes this but its not really what I want to...	Hobbes	5	883	Jul 29, 2020 by cranks38
	Looking for a Reliable Carburetor Rebuilder ( 1 2 ) (Preview) I need to have a concours quality rebuild of my Quadrajet carb. I've been looking online but can't seem to find out who is who in this business. There was a company called Carburetor Rebuilders on Eugene St. In Oshawa. Are they still in business and recommended? There is also a company in Oshawa called...	gparis7	26	4949	Jun 26, 2020 by gparis7
	It's time for a cam change in the 454 (Preview) I had my engine built in 2006, and chose an entire valve train from Comp Cams. I actually picked it up from Year One just outside Atlanta while in the area visiting family. From the start I had weak vacuum, resulting in non-working power brakes. I've tried a few things, including changing the intake...	seventy2plus2	23	1895	Jun 23, 2020 by Pontiacanada
	need help identify pistons (Preview) 1968 327 replacement,truck engine.piston number is 3796494.cant find any info on it.What im looking for is the pluc cc' measurement to use for calculating compression as I have a set of 58 cc' heads and don't want to be too high. thanks percy why are the rods red?	flatop	9	1101	Jun 15, 2020 by HK1837
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