65-70 Full Size Power Train Tech Forum

cdnpont · cdnpont

To correct my speedo drive on the TH400 to my new upcoming ratio of 3.55, what would that involve? Are different gears still available? Can they be supplied through GM? How much work is involved to change it? Any info appreciated, Thanks, Mark

cdnpont · cdnpont

Hey guys, My fuel gauge quit yesterday after filling up. The gauge rose to full, and at the next start up after shutdown I noticed it at empty. The tank and sender were both new 4 years ago. No problem until now. One thing I did notice while filling, was I thought I heard a few strange clicking sounds comi...

427carl · 427carl

I have looked for a steel fuel line, to run from fuel pump to intake of 396/427 engines with Q-Jet They are available from Jegs,Summit and Impala Bobs and more it lists the package as 2 pieces and shows pictures of 2 full size lines 1. Anyone know why? Q-jet has filter in carb 2. I have seen posi...

SGS Welding · SGS Welding

hi guys looking for more help car is a 1967 pontiac parisienne cv 327 2speed auto 12 bolt (actually a 350 now someone changed it along the way)(still has originnal carb and intake) the only way to get into 2nd gear (or final drive) is to run the car up to 50+ mph then get my shift after that i can cruise as low a...

Razzmyth · Razzmyth

Hey guys, The charging system on my '66 Strato Chief stopped working. I changed battery cables, cleaned grounds and charged/tested battery. Only thing left is the alternator and regulator. I think I'm just going to buy a new alternator. But I would like to buy one with an internal regulator. Do you g...

SGS Welding · SGS Welding

Well I finnally put the convertable on the road!Had a blast driving all weekend! Now I have identified a few issues Problem 1 the 4 barrel carb is super rich always leaving black exhaust stains out the tailpipes on the ground Problem 2 the kickdown shaft is broken at 2 speed tranny and not hooked up at ca...

GTOwner · GTOwner

Hello all, I could use some help to figure out what this engine is and where it came from. Thank you in advance for any info you can share. Block casting 3914678 with V1117B4 and 781120204 on the id pad. Head casting 3795896

seventy2plus2 · seventy2plus2

Gang, I was looking to remove the axle shafts from a 12 bolt diff, so after popping off the back cover and draining the oil, I removed the bolt that holds the pinion shaft in place. The bolt came out, but the pin part of it stayed in the carrier, so the pinion shaft won't come out. I remember seeing a post w...

blackbird307 · blackbird307

It's been happening ever since I started it a couple weeks ago when I took it out of the garage. I haven't driven it too much since I'm afraid to. I noticed that my water pump pulley is loose, not a good sign. Some how I fear that's not the only problem. I started it today and left it to idle a while and the noise...

cdnpont · cdnpont

Just checked my oil in my 350, and it really looked filthy black. So I just had it changed. When I put it away last fall, I added a little oil, and it looked pretty clean. I run Mobile1 10/30. I've had it out for the last 3 weeks, and have put some pretty fair miles on it. Now, with the aluminum rad, even on the ho...

Bago · Bago

Hello there, I'm just about to start my first ever engine build! It's a 454 big block Chevy to go in my '67. I am a total novice!! What i'd like to know is this. I'm wanting the engine to look totally original. Therefore I want to use an original iron intake. I'm currently looking at two on ebay and want...

65wagon · 65wagon

i got a little free time to put this thing together before it get cold, i had to modify the cam berings to work with the 09, got them pounded in cleaned everything up lubed up the cam stabed her in. clean up the crank stabed it in tommorow ill check clearances torgue her down and get the chain, pump pistons an...

427carl · 427carl

Looks like Tach from 65-66 that usually is mounted to the left side of dash This looks different ??

Blackheart4355 · Blackheart4355

So, I bought a new sending unit, ($105 taxes in) and I'm wondering other than syphoning the gas out of the tank is it very difficult? I'm thinking I should replace the insulators for the tank straps.. anything else I should be prepared to replace? If anyone else has done this repair I'd appreciate any...

jsr · jsr

Hey guys ....just a quick question, should a 66 389 out of a Bonneville have pushrod guide plates ? it still has the stock pressed in rocker studs. I just popped the valve covers off for probably the first time ever and found just one push rod guide plate in there for two push rods! any ideas?.....th...

Checker · Checker

HI again .. never ending discussion about swaping my Powerglide to Muncie 4 Speed (finaly to expensive) so finally to an TH 350! Which TH 350 would fits? Somebody wrote needs an long tailhousing ...so from which cars i can swap? Does an Camaro 1970-1981 TH 350 fit? How about shifting? The Powerglide...

Checker · Checker

HI, bad weather, stupid ideas! but....i don`t really like my Powerglide 2 Speed. How about a swap to a 3/4 Speed Muncie/Saginaw? Does it work with the 283 ? Where can i get, who has parts or already swap it? I have already bucket seats, and an non column shift.. Need i another trans cross frame? I would nee...

seventy2plus2 · seventy2plus2

I've got a 69 12 bolt diff, with stamping EM, and according to the 69 differential page in the parts book equates to a 3.07:1 12 bolt open. While I have a couple 2 series carriers in the garage, I'm now looking for a 3 series carrier. From the research I did some time back the carrier would have casting #...

oshawacliff · oshawacliff

A few weeks ago I made a trip to Ottawa area and stayed overnight at a B&B. Next morning I checked the rad and found it low AGAIN... Kept a watchful eye on the temp guage and nothing to get concerned about. topped it up with a few litres of green stuff and set off for home. When I got home and it had cool...

rabbit64cs · rabbit64cs

Is there any code stampings to look for? I picked up a 12 bolt posi , looks to be a 3.08 by spinning it. came out of a 65 parisienne with a 327 I'm told. been overhauled , no posi tag. Here are some stampings I found? but look more like the rebuilder stamper em? they were on the passenger backside near the...

Topic		Started By	Replies	Views	Last Post
	Different speedo gear ratios for the TH400? (Preview) To correct my speedo drive on the TH400 to my new upcoming ratio of 3.55, what would that involve? Are different gears still available? Can they be supplied through GM? How much work is involved to change it? Any info appreciated, Thanks, Mark	cdnpont	7	1177	Jun 15, 2014 by cdnpont
	Fuel gauge quit :( (Preview) Hey guys, My fuel gauge quit yesterday after filling up. The gauge rose to full, and at the next start up after shutdown I noticed it at empty. The tank and sender were both new 4 years ago. No problem until now. One thing I did notice while filling, was I thought I heard a few strange clicking sounds comi...	cdnpont	8	676	Jun 9, 2014 by JC2+2
	Fuel line for big block with Q-Jet (Preview) I have looked for a steel fuel line, to run from fuel pump to intake of 396/427 engines with Q-Jet They are available from Jegs,Summit and Impala Bobs and more it lists the package as 2 pieces and shows pictures of 2 full size lines 1. Anyone know why? Q-jet has filter in carb 2. I have seen posi...	427carl	22	1040	Jun 7, 2014 by Big Bear
	no part throttle shift for 2 speed powerfulglide (Preview) hi guys looking for more help car is a 1967 pontiac parisienne cv 327 2speed auto 12 bolt (actually a 350 now someone changed it along the way)(still has originnal carb and intake) the only way to get into 2nd gear (or final drive) is to run the car up to 50+ mph then get my shift after that i can cruise as low a...	SGS Welding	22	916	May 27, 2014 by rabbit64cs
	Alternator replacement (Preview) Hey guys, The charging system on my '66 Strato Chief stopped working. I changed battery cables, cleaned grounds and charged/tested battery. Only thing left is the alternator and regulator. I think I'm just going to buy a new alternator. But I would like to buy one with an internal regulator. Do you g...	Razzmyth	18	1638	May 27, 2014 by Razzmyth
	no kick down (Preview) Well I finnally put the convertable on the road!Had a blast driving all weekend! Now I have identified a few issues Problem 1 the 4 barrel carb is super rich always leaving black exhaust stains out the tailpipes on the ground Problem 2 the kickdown shaft is broken at 2 speed tranny and not hooked up at ca...	SGS Welding	7	923	May 26, 2014 by SGS Welding
	SBC decode (Preview) Hello all, I could use some help to figure out what this engine is and where it came from. Thank you in advance for any info you can share. Block casting 3914678 with V1117B4 and 781120204 on the id pad. Head casting 3795896	GTOwner	6	1644	May 19, 2014 by Beaumont4008

	broken screw - differential pinion shaft lock (Preview) Gang, I was looking to remove the axle shafts from a 12 bolt diff, so after popping off the back cover and draining the oil, I removed the bolt that holds the pinion shaft in place. The bolt came out, but the pin part of it stayed in the carrier, so the pinion shaft won't come out. I remember seeing a post w...	seventy2plus2	15	1052	May 12, 2014 by seventy2plus2
	Grinding noise made by engine (Preview) It's been happening ever since I started it a couple weeks ago when I took it out of the garage. I haven't driven it too much since I'm afraid to. I noticed that my water pump pulley is loose, not a good sign. Some how I fear that's not the only problem. I started it today and left it to idle a while and the noise...	blackbird307	8	876	May 3, 2014 by Greaser
	GMPP HO 350. Running too cold? (Preview) Just checked my oil in my 350, and it really looked filthy black. So I just had it changed. When I put it away last fall, I added a little oil, and it looked pretty clean. I run Mobile1 10/30. I've had it out for the last 3 weeks, and have put some pretty fair miles on it. Now, with the aluminum rad, even on the ho...	cdnpont	14	1198	Apr 23, 2014 by cdnpont
	454 build for my '67 Parisienne (Preview) Hello there, I'm just about to start my first ever engine build! It's a 454 big block Chevy to go in my '67. I am a total novice!! What i'd like to know is this. I'm wanting the engine to look totally original. Therefore I want to use an original iron intake. I'm currently looking at two on ebay and want...	Bago	19	1967	Apr 4, 2014 by 73SC
	409 340hp progress (Preview) i got a little free time to put this thing together before it get cold, i had to modify the cam berings to work with the 09, got them pounded in cleaned everything up lubed up the cam stabed her in. clean up the crank stabed it in tommorow ill check clearances torgue her down and get the chain, pump pistons an...	65wagon	24	2196	Mar 23, 2014 by rabbit64cs
	Where is this Tachometer (Preview) Looks like Tach from 65-66 that usually is mounted to the left side of dash This looks different ??	427carl	4	1012	Jan 27, 2014 by 65wagon
	Replacing Fuel Tank Sending Unit (Preview) So, I bought a new sending unit, ($105 taxes in) and I'm wondering other than syphoning the gas out of the tank is it very difficult? I'm thinking I should replace the insulators for the tank straps.. anything else I should be prepared to replace? If anyone else has done this repair I'd appreciate any...	Blackheart4355	18	1239	Jan 22, 2014 by rabbit64cs

	66 389 Bonneville push rod guides (Preview) Hey guys ....just a quick question, should a 66 389 out of a Bonneville have pushrod guide plates ? it still has the stock pressed in rocker studs. I just popped the valve covers off for probably the first time ever and found just one push rod guide plate in there for two push rods! any ideas?.....th...	jsr	10	1172	Jan 13, 2014 by Checker
	1965 Pontiac Parisienne conversion Powerglide TH 350 (Preview) HI again .. never ending discussion about swaping my Powerglide to Muncie 4 Speed (finaly to expensive) so finally to an TH 350! Which TH 350 would fits? Somebody wrote needs an long tailhousing ...so from which cars i can swap? Does an Camaro 1970-1981 TH 350 fit? How about shifting? The Powerglide...	Checker	4	976	Jan 11, 2014 by 65wagon
	1965 Pontiac Parisienne conversion Powerglide to 4 Speed Muncie or Saginaw ??? ( 1 2 ) (Preview) HI, bad weather, stupid ideas! but....i don`t really like my Powerglide 2 Speed. How about a swap to a 3/4 Speed Muncie/Saginaw? Does it work with the 283 ? Where can i get, who has parts or already swap it? I have already bucket seats, and an non column shift.. Need i another trans cross frame? I would nee...	Checker	26	4064	Jan 8, 2014 by rabbit64cs
	Looking for 12 bolt 3 series posi carrier (Preview) I've got a 69 12 bolt diff, with stamping EM, and according to the 69 differential page in the parts book equates to a 3.07:1 12 bolt open. While I have a couple 2 series carriers in the garage, I'm now looking for a 3 series carrier. From the research I did some time back the carrier would have casting #...	seventy2plus2	21	3374	Dec 29, 2013 by 427carl
	Enough of pouring green stuff in to Impala (Preview) A few weeks ago I made a trip to Ottawa area and stayed overnight at a B&B. Next morning I checked the rad and found it low AGAIN... Kept a watchful eye on the temp guage and nothing to get concerned about. topped it up with a few litres of green stuff and set off for home. When I got home and it had cool...	oshawacliff	13	1435	Nov 14, 2013 by rabbit64cs
	ID a 12 bolt posi? (Preview) Is there any code stampings to look for? I picked up a 12 bolt posi , looks to be a 3.08 by spinning it. came out of a 65 parisienne with a 327 I'm told. been overhauled , no posi tag. Here are some stampings I found? but look more like the rebuilder stamper em? they were on the passenger backside near the...	rabbit64cs	18	1423	Nov 7, 2013 by deleted
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