58-64 Full Size Power Train Tech Forum

Johnnee D · Johnnee D

Last Sunday on my way back from a car show the car started sputtering and then no more fuel delivery...the fuel filter was dry and no matter what I tried to do nothing was happening (CAA membership very useful)... I thought fuel pump... so yesterday I went and found the correct fuel pump, installed it an...

paris63 · paris63

I've just installed a vintage 70's era Sun Super Tach II, so now I can adjust the idle with some degree of accuracy. Any suggestions on what I should set it at? Thanks!

southernal · southernal

hi there,, new to this site and searching for some info. ive been able to determine my 261 is March 17th 1959 yom.. with the lower compression head ( last 2 digits '50) .. its 3 speed is a bit of a mis-match of parts . but loosely pinned as 3 speed Muncie. so then the block all the info I c...

paris63 · paris63

Now that' I've solved my wobbly driveshaft issue, I'm looking to swap out my rear end with a replacement unit. I've got a refurbished 3.08 POSI in a spare housing complete with axles ready to bolt in and go. I will be re-using the drum brake assembly. Any idea how long it will take doing it driveway sty...

toolnut · toolnut

Would like to know the gear ratio specs for standard transmission (3 speed naturally) and differential in a 1960 Pontiac Strato Chief. Can anyone provide them to me or identify source where I can look them up. thanks p.s. I do not have the differential otherwise I could have figured that out.

bragabuster · bragabuster

i bought a timing kit today and ive been on youtube to see how to use it. i get the general idea but there are a few things that im stumped on. Can't find a firing order on the engine. - how do i locate the spark plug that goes to the first cylinder? And what number do i adjust the setting to? ive noticed on the v...

toolnut · toolnut

Well, here I am back again. Just confirmed the gear ratio on the Camaro diff going into the 39 Chevy is 342:1. I believe the diff gear ratio on the 60 Pontiac from which I harvested the 261 engine and 3 speed standard tranny was 355:1. The car from which parts were harvested was a 60 Pontiac Strato Chie...

bragabuster · bragabuster

Hello kind folks, I am here again asking for some advice. My engine seems to be running a bit rough. I've been told that these straight sixes run very smooth when Tuned correctly. What I've done to the engine: New carburetor Changed the push rods Spark plugs/ wires. Distributor cap/points/ router. T...

toolnut · toolnut

I am finally completing the rebuild on my 261 ci from a 1960 Pontiac. Don't know how this escaped me before but I cannot find any timing mark on the harmonic balance wheel nor a pointer on the engine. Is this normal for this engine, and if so, how does one set the ignition timing? As a matter of interest...

paris63 · paris63

I got a quote for installing a new carrier bearing and balancing my drive shaft. Good thing I was sitting down. $700-$900!!! Maybe I made the mistake of asking for a custom unit to be fashioned out of titanium plated narwhal tusks. Must be a Vancouver thing, but it sure makes keeping these old rid...

bragabuster · bragabuster

so my straight six has been running rough lately and it sounds like it's miss firing. I changed the push rods recently but when I did I just tightened the rockers by feel. I'd like to go back and tighten then to the right torque pressure. Would anyone know the amount of torque pressure to use? The engine i...

rumrunner · rumrunner

Hey Guys, Having a little trouble with the PG that I am putting into the 61. Its an aluminum PG from a 72 Nova mated to a 350. I had to pull the range selector out that was in it because it was the B&M solid one with nothing for the kickdown. When I removed this , the rooster comb and park lock actuator came o...

bragabuster · bragabuster

The oil dip stick on my 250 straight six engine was broken when I got my car. And I'm having a hard time finding one. I bought a replacement dipstick the kind that's adjustable but I have Nothing to compare it to. Was hoping someone here had the same engine. And could tell me the length so I can set it to mine....

mike667 · mike667

Just wondering if a 454 would fit into a 64 Parisienne with minimal modifications required. What would be needed? I am considering to take a look at this car, but would like to know if I can get a big block in there easily... Date Listed03-May-14Price Please contactAddressSt. Catharines, ON, Cana...

TDS · TDS

Hi My engine has a low knocking sound and I cant locate it. Its not continiusly. It appears when the engine rises to normal working temperature. The engine is running smoothly both at idle and at driving but it has a tendency to miss when it gets hot Number 12346 sparkplugs are burnt brown. Number 5 is...

toolnut · toolnut

Looking for a source to purchase new hydraulic lifters and cam for 60 Pontiac 261 cubic inch. American sources only have solid lifters and cam that was used in US Chevy trucks. I have heard that hydraulic lifters for the 235 will fit the 261 but this still leaves the problem of the cam. Already been in...

Pontiacanada · Pontiacanada

I took the 2 piece drive shaft out of my spare frame today. Look at the shape the carrier bearing is in. It's one of those parts that I bet goes unnoticed and unreplaced. Imagine how many nice cars are driving around with their original, crappy bearings in them. This one is toast. I'm going with a urethane...

HonestDave · HonestDave

I have two 62 Parisiennes, one ragtop for fixing, one hardtop for parts. Ragtop has sat for 14 years. Hardtop has sat for decades. I haven't verified yet, but they look original, and I assume they both have cast iron powerglides like most of my Pontiac / Chev cars of that era. Question is: How do these tra...

meowy84 · meowy84

No matter what I do and what position the turn signal stalk is in as soon as the car is started the right turn signal starts blinking and there is no way to turn it off short of removing the flasher unit. Any ideas what gremlin might be causing this issue?

TDS · TDS

Hi My Laurentian is leaking at the rear crankshaft seal. I belive its a rope seal. Have anyone tried to replace this without pulling the engine?. A guide would be great. Merry Christmas to all of you. Best Torben

Topic		Started By	Replies	Views	Last Post
	Puzzled...need help... fuel problems (Preview) Last Sunday on my way back from a car show the car started sputtering and then no more fuel delivery...the fuel filter was dry and no matter what I tried to do nothing was happening (CAA membership very useful)... I thought fuel pump... so yesterday I went and found the correct fuel pump, installed it an...	Johnnee D	14	1654	Aug 14, 2014 by 427carl
	283 2 Barrel Rochester Idle Speed??? (Preview) I've just installed a vintage 70's era Sun Super Tach II, so now I can adjust the idle with some degree of accuracy. Any suggestions on what I should set it at? Thanks!	paris63	5	952	Aug 7, 2014 by paris63
	261 casting number (Preview) hi there,, new to this site and searching for some info. ive been able to determine my 261 is March 17th 1959 yom.. with the lower compression head ( last 2 digits '50) .. its 3 speed is a bit of a mis-match of parts . but loosely pinned as 3 speed Muncie. so then the block all the info I c...	southernal	2	894	Jul 30, 2014 by 427carl
	Gotta get my rear in gear! (Preview) Now that' I've solved my wobbly driveshaft issue, I'm looking to swap out my rear end with a replacement unit. I've got a refurbished 3.08 POSI in a spare housing complete with axles ready to bolt in and go. I will be re-using the drum brake assembly. Any idea how long it will take doing it driveway sty...	paris63	5	904	Jul 22, 2014 by paris63
	Tranny/Diff. ratio specs (Preview) Would like to know the gear ratio specs for standard transmission (3 speed naturally) and differential in a 1960 Pontiac Strato Chief. Can anyone provide them to me or identify source where I can look them up. thanks p.s. I do not have the differential otherwise I could have figured that out.	toolnut	7	1418	Jul 11, 2014 by long stroke
	Firing order on a 250 straight six (Preview) i bought a timing kit today and ive been on youtube to see how to use it. i get the general idea but there are a few things that im stumped on. Can't find a firing order on the engine. - how do i locate the spark plug that goes to the first cylinder? And what number do i adjust the setting to? ive noticed on the v...	bragabuster	5	1246	Jul 1, 2014 by bragabuster
	60 Pontiac original tire diameter (Preview) Well, here I am back again. Just confirmed the gear ratio on the Camaro diff going into the 39 Chevy is 342:1. I believe the diff gear ratio on the 60 Pontiac from which I harvested the 261 engine and 3 speed standard tranny was 355:1. The car from which parts were harvested was a 60 Pontiac Strato Chie...	toolnut	2	891	Jun 29, 2014 by 427carl

	Engine running rough (Preview) Hello kind folks, I am here again asking for some advice. My engine seems to be running a bit rough. I've been told that these straight sixes run very smooth when Tuned correctly. What I've done to the engine: New carburetor Changed the push rods Spark plugs/ wires. Distributor cap/points/ router. T...	bragabuster	14	1172	Jun 28, 2014 by 67curves
	timing marks on 1960 261?? (Preview) I am finally completing the rebuild on my 261 ci from a 1960 Pontiac. Don't know how this escaped me before but I cannot find any timing mark on the harmonic balance wheel nor a pointer on the engine. Is this normal for this engine, and if so, how does one set the ignition timing? As a matter of interest...	toolnut	5	1751	Jun 19, 2014 by long stroke
	You want how much for what?!?!? (Preview) I got a quote for installing a new carrier bearing and balancing my drive shaft. Good thing I was sitting down. $700-$900!!! Maybe I made the mistake of asking for a custom unit to be fashioned out of titanium plated narwhal tusks. Must be a Vancouver thing, but it sure makes keeping these old rid...	paris63	17	1528	Jun 19, 2014 by 427carl
	Torque specifications (Preview) so my straight six has been running rough lately and it sounds like it's miss firing. I changed the push rods recently but when I did I just tightened the rockers by feel. I'd like to go back and tighten then to the right torque pressure. Would anyone know the amount of torque pressure to use? The engine i...	bragabuster	2	682	Jun 18, 2014 by bragabuster
	Calling out to the PowerGlide Guru's .... (Preview) Hey Guys, Having a little trouble with the PG that I am putting into the 61. Its an aluminum PG from a 72 Nova mated to a 350. I had to pull the range selector out that was in it because it was the B&M solid one with nothing for the kickdown. When I removed this , the rooster comb and park lock actuator came o...	rumrunner	3	755	Jun 11, 2014 by Beaumont4008
	Dip stick on a 250 straight 6 (Preview) The oil dip stick on my 250 straight six engine was broken when I got my car. And I'm having a hard time finding one. I bought a replacement dipstick the kind that's adjustable but I have Nothing to compare it to. Was hoping someone here had the same engine. And could tell me the length so I can set it to mine....	bragabuster	12	1164	Jun 7, 2014 by beaumontguru
	Will a 454 fit into a 1964 Pontiac Parisienne (easily)?? ( 1 2 ) (Preview) Just wondering if a 454 would fit into a 64 Parisienne with minimal modifications required. What would be needed? I am considering to take a look at this car, but would like to know if I can get a big block in there easily... Date Listed03-May-14Price Please contactAddressSt. Catharines, ON, Cana...	mike667	30	2895	May 6, 2014 by 67BBSD

	1960 GM 261 cui 6 cylinder engine noise (Preview) Hi My engine has a low knocking sound and I cant locate it. Its not continiusly. It appears when the engine rises to normal working temperature. The engine is running smoothly both at idle and at driving but it has a tendency to miss when it gets hot Number 12346 sparkplugs are burnt brown. Number 5 is...	TDS	4	1018	May 4, 2014 by 427carl
	60 Pontiac 261 ci rebuild (Preview) Looking for a source to purchase new hydraulic lifters and cam for 60 Pontiac 261 cubic inch. American sources only have solid lifters and cam that was used in US Chevy trucks. I have heard that hydraulic lifters for the 235 will fit the 261 but this still leaves the problem of the cam. Already been in...	toolnut	8	1949	Feb 26, 2014 by Bernardo
	I Bet This Is A Part That Gets Over-looked on a lot of X-frame Cars ( 1 2 ) (Preview) I took the 2 piece drive shaft out of my spare frame today. Look at the shape the carrier bearing is in. It's one of those parts that I bet goes unnoticed and unreplaced. Imagine how many nice cars are driving around with their original, crappy bearings in them. This one is toast. I'm going with a urethane...	Pontiacanada	32	4199	Feb 7, 2014 by Pritch
	62 Cast Iron Powerglide Question (Preview) I have two 62 Parisiennes, one ragtop for fixing, one hardtop for parts. Ragtop has sat for 14 years. Hardtop has sat for decades. I haven't verified yet, but they look original, and I assume they both have cast iron powerglides like most of my Pontiac / Chev cars of that era. Question is: How do these tra...	HonestDave	8	1157	Jan 27, 2014 by paris63
	Turn signal issue (Preview) No matter what I do and what position the turn signal stalk is in as soon as the car is started the right turn signal starts blinking and there is no way to turn it off short of removing the flasher unit. Any ideas what gremlin might be causing this issue?	meowy84	7	1158	Jan 25, 2014 by 4SPEED427
	Replace rear crankshaft seal (Preview) Hi My Laurentian is leaking at the rear crankshaft seal. I belive its a rope seal. Have anyone tried to replace this without pulling the engine?. A guide would be great. Merry Christmas to all of you. Best Torben	TDS	10	1257	Dec 26, 2013 by TDS
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