Showing results 1 to 25 of 500
Search took 0.06 seconds.
Search: Posts Made By: grivera
Forum: Pontiac - Street 05-19-2024, 08:12 AM
Replies: 15
Views: 777
Posted By Cliff R
I used SD's Old Faithful cam 236/245/112 in my...

I used SD's Old Faithful cam 236/245/112 in my last 455 at 11.3 to 1 compression. It was pretty "tame" at idle making 13.5" vacuum at 750rpm's with only 10 degrees initial timing. Fine on pump gas...
Forum: Pontiac - Street 05-16-2024, 05:12 PM
Replies: 16
Views: 297
Posted By Formulajones
Corvettes we're built in The 10's of thousands...

Corvettes we're built in The 10's of thousands with 4 wheel manual disc brakes starting in 65 and continued the trend with manual into the mid 70's. Power was an option.

I did 4 wheel manual disc...
Forum: Pontiac - Street 05-16-2024, 01:25 PM
Replies: 16
Views: 297
Posted By 65madgoat
7/8" master cylinder and go smaller (3/16") on...

7/8" master cylinder and go smaller (3/16") on brake line to the rear is my advice going manual. Manual works great when set up right.
Forum: Pontiac - Street 05-16-2024, 01:23 PM
Replies: 16
Views: 297
Posted By Scarebird
This is nonsense. A lot of factory cars...

This is nonsense.

A lot of factory cars had manual disc in the 60's till the mid 70's; Corvettes, Camaros, Firebirds, and especially Mustangs. I have hands-on converted several vehicles to...
Forum: 66-67 GTO Tempest & LeMans TECH 05-10-2024, 08:36 AM
Replies: 1
Views: 140
Posted By android 211
There was a guy who parted out Pontiacs a few...

There was a guy who parted out Pontiacs a few miles from my house. He sold me a set of coil springs that came off a 66 or 67 Lemans that still had the ID tags on them. The fronts said 'Moog HD' and...
Forum: Interior TECH 05-06-2024, 02:56 PM
Replies: 7
Views: 369
Posted By b-man
Bought some foam for my Le Mans convertible...

Bought some foam for my Le Mans convertible buckets from Ames a couple weeks ago. Ordered complete Legendary upholstery in Saddle at the same time, about an 8 month wait for that.

They have a...
Forum: Pontiac - Street 05-06-2024, 09:20 AM
Replies: 11
Views: 357
Posted By johnta1
Congrats! Good looking 66. :)

Congrats!
Good looking 66.


:)
Forum: Interior TECH 05-06-2024, 01:18 AM
Replies: 7
Views: 369
Posted By Entropy11
ACI for a sure thing quality/fit/feel. If I were...

ACI for a sure thing quality/fit/feel. If I were to gamble on any other set of foams it would be these (also USA made) : https://www.thorntonmusclecars.com/product-page/bucket-seat-foam-full-slot
...
Forum: Pontiac - Street 05-03-2024, 02:30 PM
Replies: 19
Views: 761
Posted By steve25
I am trying to find my notes from 25 years ago ...

I am trying to find my notes from 25 years ago in regards to the valve to piston clearance deal, but here’s what I recall off of the top of my head.
Using 428 pistons in a 421 build with its...
Forum: Pontiac - Street 05-03-2024, 01:36 PM
Replies: 19
Views: 761
Posted By b-man
Not really because the 421 block has a pretty...

Not really because the 421 block has a pretty robust casting compared to the 389s. However that much overbore kind of diminishes the value to a certain extent. When I bought my 421 it was standard...
Forum: Pontiac - Street 05-03-2024, 12:10 PM
Replies: 19
Views: 761
Posted By b-man
Absolutely not 421 pistons. The valve reliefs are...

Absolutely not 421 pistons. The valve reliefs are completely different on a 421.

The valve reliefs and dish shown are what forged 428 replacement TRW/Sealed Power 12cc pistons all look like.
...
Forum: Pontiac - Street 05-03-2024, 11:53 AM
Replies: 19
Views: 761
Posted By b-man
Standard bore size is 4.09375” for the 421. ...

Standard bore size is 4.09375” for the 421.

4.120” is standard bore for the 428.

4.160” is +.040” for the 428 pistons so you’re poking that 421 .06625” over which seems excessive unless the...
Forum: Pontiac - Street 05-03-2024, 10:58 AM
Replies: 19
Views: 761
Posted By John Milner
The pin height will be the same. You would just...

The pin height will be the same. You would just have to be careful about running much lift if you used the 76 heads as the valve angles do not match up with the valve reliefs in the 428 pistons. I...
Forum: Pontiac - Street 04-29-2024, 08:55 PM
Replies: 18
Views: 849
Posted By tom s
I think the correct term was "fitted block"no...

I think the correct term was "fitted block"no crank or rods.Tom
Forum: Pontiac - Street 04-22-2024, 08:04 PM
Replies: 20
Views: 1,116
Posted By 65 Lamnas
I don't think it's a "shorter chain" when you're...

I don't think it's a "shorter chain" when you're buying that type of timing set. At least that's how it is with Rollmaster. With those .005 and .010 sets, the chain is the same as in the standard...
Forum: Pontiac - Street 04-13-2024, 03:52 PM
Replies: 98
Views: 5,163
Posted By Verdoro 68
The 33 spine TrueTrac is $35 more than a 30...

The 33 spine TrueTrac is $35 more than a 30 spline ($510 vs $475).

I put my order in online and a rep from Moser called me about 30 minutes later to run through the config and answer any...
Forum: Pontiac - Street 04-07-2024, 08:03 PM
Replies: 24
Views: 1,039
Posted By Verdoro 68
I've been really happy with the Eastwood manifold...

I've been really happy with the Eastwood manifold coating in spray cans. It lasted longer than the powder coating I had done and is easy to touch up if you need to.
Forum: Pontiac - Street 04-07-2024, 07:22 AM
Replies: 6
Views: 417
Posted By 64speed
Dakota Digital

I think I posted a while back about my gas gauge quitting working and assuming it was the sending unit (Tanks Inc. Floatless Unit). Well ever since I have had these Dakota Digital RTX gauges there...
Forum: Pontiac - Street 04-06-2024, 08:04 AM
Replies: 22
Views: 1,172
Posted By steve25
Other details for good cooling that often get...

Other details for good cooling that often get overlooked are hose related .
No flexible ribbed type hoses should be used since they create turbulence and that turbulence causes a restriction.
...
Forum: Pontiac - Street 04-06-2024, 02:24 AM
Replies: 22
Views: 1,172
Posted By b-man
Here you go: ...

Here you go:

https://www.coldcaseradiators.com/node/164?sku=GPF18A

They sell oversize 2-row which cool better than 3 or 4 row radiators. I recently bought one of their heavy duty 2-row (1-1/4”...
Forum: Pontiac - Street 04-01-2024, 11:24 AM
Replies: 15
Views: 851
Posted By steve25
First off you want to pull all the plugs out. ...

First off you want to pull all the plugs out.

2) kill the power to the Dizzy .
You bo not want any spark to be produced.
3) crank it over for 10 seconds.

4 dribble fuel into the fuel bowl...
Forum: Pontiac - Street 03-29-2024, 02:01 PM
Replies: 81
Views: 5,400
Posted By Formulajones
Oil analysis tells me that the good oil I use...

Oil analysis tells me that the good oil I use along with a decent store bought filter is still doing ok at 6000 miles and that's good enough for me. That saves me plenty of oil changes with the...
Forum: Pontiac - Street 03-28-2024, 10:02 AM
Replies: 10
Views: 681
Posted By Keith Seymore
I made my own. I had a piece of aluminum...

I made my own.

I had a piece of aluminum flat stock laying around and chopped it down to fit. I shoot through the hole with a depth gage or my vernier and subtract the thickness of the plate...
Forum: 68-69 GTO Tempest & LeMans TECH 03-27-2024, 02:23 PM
Replies: 13
Views: 936
Posted By OG68
Chicken wire was used in the 68/69 Pontiac A...

Chicken wire was used in the 68/69 Pontiac A bodies.
However, the plastic inserts are shown in the 69 assembly manual in addition to the screen.

I don't ever recall seeing a 69 with the...
Forum: Pontiac - Street 03-25-2024, 10:13 PM
Replies: 67
Views: 3,024
Posted By JLMounce
Yes, I've verified all injectors are functioning....

Yes, I've verified all injectors are functioning. No injector fault codes either.
Showing results 1 to 25 of 500

 
Forum Jump

All times are GMT -4. The time now is 06:43 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017