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PY Online Forums - Bringing the Pontiac Hobby Together
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Posts Made By:
Tim Corcoran
Forum:
Pontiac - Race
05-10-2024, 08:31 AM
Replies:
11
Camshaft Identification
Views:
265
Posted By
Tim Corcoran
I would call Comp Cams and they should be able to...
I would call Comp Cams and they should be able to get you a cam card with all the specs.
Forum:
Pontiac - Street
05-10-2024, 08:12 AM
Replies:
13
"62" heads valve job or aluminum replacement recommendation needed
Views:
533
Posted By
Tim Corcoran
You can get 400 HP using your 62 heads but they...
You can get 400 HP using your 62 heads but they will need some port work to get there. You will need to measure how far the pistons are in the hole, measure valve relief pockets, head gasket...
Forum:
Pontiac - Street
05-10-2024, 07:54 AM
Replies:
16
REMOVING PLUG FROM EDELBROCK INTAKE
Views:
531
Posted By
Tim Corcoran
If you have an oxy acetylene torch put some...
If you have an oxy acetylene torch put some penetrating oil around the plug then heat the metal plug not the manifold use a small tip as to direct the heat to the center of the plug, get it good and...
Forum:
Pontiac - Street
05-09-2024, 07:10 AM
Replies:
31
Recipe for a reliable 400 driver
Views:
1,200
Posted By
Tim Corcoran
The 67 GTO 400 360 HP engine came from the...
The 67 GTO 400 360 HP engine came from the factory with the 068 cam. This is a mild performance cam but improved performance over other factory cams. This cam works well with 9.0 to 9.5 compression...
Forum:
Pontiac - Street
05-07-2024, 03:27 PM
Replies:
15
Timing cover advice needed
Views:
476
Posted By
Tim Corcoran
Don't forget to change these ...
Don't forget to change these
...
Forum:
Pontiac - Race
05-07-2024, 03:20 PM
Replies:
15
National Event Wally with Hot Sauce on it
Views:
444
Posted By
Tim Corcoran
That's a very fast MPH for a 10.89
That's a very fast MPH for a 10.89
Forum:
Pontiac - Street
05-07-2024, 12:26 PM
Replies:
15
Timing cover advice needed
Views:
476
Posted By
Tim Corcoran
If needed ...
If needed
...
Forum:
Pontiac - Street
05-07-2024, 04:30 AM
Replies:
15
Timing cover advice needed
Views:
476
Posted By
Tim Corcoran
The corrosion on the timing cover can be cleaned...
The corrosion on the timing cover can be cleaned up real good and fill the groove/pits with JB Weld and file smooth after hard. Depending on how bad the divider plate is corroded you may want to...
Forum:
Pontiac - Street
05-05-2024, 05:19 PM
Replies:
10
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
519
Posted By
Tim Corcoran
Even for a street car 1/2 turn isn't the golden...
Even for a street car 1/2 turn isn't the golden rule. Lifter companies recommend setting them at 1/2 the travel and they all have different amounts of travel. but some lifters make noise and you can...
Forum:
Pontiac - Street
05-05-2024, 05:09 PM
Replies:
7
Vent on filler neck
Views:
327
Posted By
Tim Corcoran
The vent prevents suction that will prevent fuel...
The vent prevents suction that will prevent fuel delivery to the carb. With environmental concerns developing the vents went away and the vented caps where instituted by the government.
Forum:
Pontiac - Street
05-04-2024, 09:14 AM
Replies:
6
Roller rockers and edlebrock elite valve covers..???
Views:
618
Posted By
Tim Corcoran
Butler sell valve cover gaskets in different...
Butler sell valve cover gaskets in different thicknesses they even have them in 5/16 thick.
...
Forum:
Suspension TECH
05-03-2024, 03:14 AM
Replies:
37
18 inch wheel fitment, '67 LeMans/GTO?
Views:
1,244
Posted By
Tim Corcoran
Oh no, 18" wheels on a GTO??? Yikes
Oh no, 18" wheels on a GTO??? Yikes
Forum:
Pontiac - Street
05-03-2024, 03:11 AM
Replies:
14
Going to build one more...
Views:
1,420
Posted By
Tim Corcoran
Those are some sweet Centerlines in the first...
Those are some sweet Centerlines in the first picture I hope your not replacing them for those black wheels I see in another picture. Did you do the port work on the heads? What is the purpose of...
Forum:
Pontiac - Street
05-02-2024, 03:37 PM
Replies:
13
2 Questions about my ride
Views:
577
Posted By
Tim Corcoran
Not to sound like a broken record but I converted...
Not to sound like a broken record but I converted both my 65 and 67 LeMans to a TH-400 and all I did is move it and drill it just like Ken said. I never noticed a height difference, not say it's not...
Forum:
Pontiac - Street
05-02-2024, 04:52 AM
Replies:
8
Read these plugs
Views:
500
Posted By
Tim Corcoran
Reading the plugs on a street given car doesn't...
Reading the plugs on a street given car doesn't tell you much. Is it telling you idle, cruise or full throttle? As you said it may be rich at idle or low speed
Forum:
Pontiac - Race
05-01-2024, 03:51 PM
Replies:
25
Milling Intake
Views:
930
Posted By
Tim Corcoran
I bought a new Victor several years ago and it...
I bought a new Victor several years ago and it sat too high with a Felpro .040 gasket. I checked the port alignment without the gasket and it looked perfect. So I put a small amount of silicone...
Forum:
Pontiac - Street
05-01-2024, 03:21 PM
Replies:
23
Best alternative to the cast 8vr?
Views:
894
Posted By
Tim Corcoran
There are a few options What I would do is...
There are a few options
What I would do is figure your compression with an online compression calculator using a flat top piston and your planned bore size. Don't forget to include the number of...
Forum:
Pontiac - Street
04-29-2024, 03:12 AM
Replies:
4
77 grand prix electric fans
Views:
354
Posted By
Tim Corcoran
I don't see a reason to go to the trouble and...
I don't see a reason to go to the trouble and expense of installing electric fan(s) on your car. The factory shrouds and clutch fan should do an excellent job of cooling a 400 cubic inch motor. If...
Forum:
Pontiac - Street
04-25-2024, 12:06 PM
Replies:
20
Cams Video
Views:
1,143
Posted By
Tim Corcoran
Back in the day there weren't much available for...
Back in the day there weren't much available for Pontiac after market rods so Jim Butler, and probably others figured out if you turn the Pontiac rod journal down to 2.2 you could use a BBC rod, but...
Forum:
Pontiac - Street
04-25-2024, 06:00 AM
Replies:
20
Cams Video
Views:
1,143
Posted By
Tim Corcoran
I was thinking the same thing because the ratio...
I was thinking the same thing because the ratio between intake and exhaust flow on a Pontiac engine is not great even on a ported E-head with upgraded 1.77 exhaust valves, yet they still make pretty...
Forum:
Pontiac - Street
04-25-2024, 03:42 AM
Replies:
20
.005 or .010 shorter cam chain needed?
Views:
1,062
Posted By
Tim Corcoran
My last build the chain was very loose and I...
My last build the chain was very loose and I tried a Rollmaster -.010 short I couldn't even get it installed. I exchanged it for a -.005 set and it fit tight with almost no slop. Sometimes a test fit...
Forum:
Pontiac - Street
04-23-2024, 03:27 PM
Replies:
20
Cams Video
Views:
1,143
Posted By
Tim Corcoran
I noticed the same thing about Spring pressure...
I noticed the same thing about Spring pressure that info is not correct. Even so it is a good video with some good entry level info. His second video on the same subject is also very good and a...
Forum:
Pontiac - Street
04-22-2024, 11:09 PM
Replies:
20
Cams Video
Views:
1,143
Posted By
Tim Corcoran
Cams Video
This is an interesting video and there is a part two that is good also
https://youtu.be/JPAeepqrY-0
Forum:
Pontiac - Race
04-21-2024, 03:12 PM
Replies:
101
400 Stroker Build Documentary
Views:
10,345
Posted By
Tim Corcoran
The engine I built for my street car last year I...
The engine I built for my street car last year I used the BOP one piece rear main seal. I made the mistake of letting my machinist install it, thinking letting him do it was my best shot at getting a...
Forum:
Pontiac - Race
04-21-2024, 02:34 PM
Replies:
101
400 Stroker Build Documentary
Views:
10,345
Posted By
Tim Corcoran
At the machine shop bearing clearances were...
At the machine shop bearing clearances were verified .026-.027 on the rods and the mains are .029-.031 and that is right about what I wanted. Prior to installing the rear main seal I checked the...
Showing results 1 to 25 of 500
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