Home Menu

Menu


          
PY Online Forums - Bringing the Pontiac Hobby Together > Search Forums > Search Results
Page 1 of 4 1 23 Last »
Showing results 1 to 25 of 96
Search took 0.04 seconds. Search: Posts Made By: BLUE TA
Forum: Pontiac - Street 04-13-2025, 05:51 PM
Replies: 19
Views: 593
Posted By 65 Lamnas
You can add a ported vacuum advance port if you...

You can add a ported vacuum advance port if you want one.
Forum: Pontiac - Street 04-13-2025, 06:03 AM
Replies: 19
Views: 593
Posted By Kenth
Not true at all! 1970-71 and 73-74 engines,...

Not true at all!

1970-71 and 73-74 engines, except 1971 455 H.O., uses the Transmission Control Spark system, TCS.
1971 455 H.O. uses a ported vacuum source with a TVS to control the vacuum...
Forum: Pontiac - Street 03-07-2025, 06:19 PM
Replies: 74
Views: 7,053
Posted By Jay S
That Summit 2821 is identical to the Melling...

That Summit 2821 is identical to the Melling SPC-8 041 cam, both ground by CMC in Michigan, and ground on the same cam core. Might as well pick the cheaper one, there is no difference.

The 60919...
Forum: Pontiac - Street 03-04-2025, 01:51 PM
Replies: 53
Views: 4,200
Posted By SD455DJ
My brother Dan has built many 455HO’s for the...

My brother Dan has built many 455HO’s for the Pure Stock Drags and stock, they are easy 400 hp/500 lbft engines with 8.5 to 1 compression and 068 style cams (Summit 2801). He built a nice ’71 455HO...
Forum: Pontiac - Street 02-28-2025, 04:35 PM
Replies: 2
Views: 1,676
Posted By steve25
I would pick up a set of Autolite #26 or if your...

I would pick up a set of Autolite #26 or if your wallet as more green in it get a set of AP26.
Forum: Pontiac - Street 02-13-2025, 03:24 PM
Replies: 27
Views: 3,445
Posted By Cliff R
"Any thoughts on CROWERs 60243 (228* / 235*...

"Any thoughts on CROWERs 60243 (228* / 235* 112*LS) Maybe dont need to raise the compression to 10:1
Any thoughts Cliff ????"

I've used that cam many times in 400 builds, but never in a 455, so...
Forum: Pontiac - Street 01-07-2025, 05:19 PM
Replies: 14
Views: 1,260
Posted By b-man
Regarding the 3” versus 3.25” main bearing speed,...

Regarding the 3” versus 3.25” main bearing speed, on a street engine and in many non-endurance race engines it’s pretty much a non-issue.
...
Forum: Pontiac - Street 01-06-2025, 11:05 PM
Replies: 165
Views: 40,189
Posted By AG
I would first take every spring and measure the...

I would first take every spring and measure the height to get the seat pressure you want and mark each spring. Then check the installed height of every valve and you'll know how much you have to...
Forum: Pontiac - Street 01-03-2025, 10:31 AM
Replies: 27
Views: 1,794
Posted By 78w72
X3 on the summit mini, have one on a 10:7 467...

X3 on the summit mini, have one on a 10:7 467 stroker for 10+ years, no issues at all with starting power, reliability or install/fitment.

Not sure which part# it is but summit mini starters are...
Forum: Pontiac - Street 01-02-2025, 11:05 PM
Replies: 27
Views: 1,794
Posted By Dragncar
I have had a Summit starter on my car forever. No...

I have had a Summit starter on my car forever. No troubles.
Forum: Pontiac - Street 12-29-2024, 01:23 AM
Replies: 22
Views: 1,090
Posted By Jay S
Stock valve length and 68404 springs are hard to...

Stock valve length and 68404 springs are hard to beat with a RA 4 cam. Pretty simple combo.
Forum: Pontiac - Street 12-26-2024, 06:32 PM
Replies: 74
Views: 7,053
Posted By Kenth
Here is the Summit RAIV camshaft: ...

Here is the Summit RAIV camshaft:

https://www.summitracing.com/parts/sum-2821#overview
Forum: Pontiac - Street 12-26-2024, 06:13 PM
Replies: 74
Views: 7,053
Posted By 77 TRASHCAN
I did some digging. Somewhere, here, someone...

I did some digging. Somewhere, here, someone mentioned Summit's 041 cam (their branding) part number 2821. It's a 041 copy, also.
I'm not sure how long it's been out. It's considerably cheaper than...
Forum: Pontiac - Street 12-22-2024, 06:38 PM
Replies: 24
Views: 1,824
Posted By mgarblik
Ultrasonic cleaners do a pretty good job removing...

Ultrasonic cleaners do a pretty good job removing carbon and cleaning pistons in general. Some expense involved of course. One large enough to clean say a disassembled Q-Jet or 4 pistons at a time...
Forum: Pontiac - Street 12-12-2024, 12:55 PM
Replies: 94
Views: 6,811
Posted By 78w72
The 1st pic is manifold vac source that some...

The 1st pic is manifold vac source that some prefer, the 2nd pic at the carb vac tree would still be a full manifold vac source... if ported vac is desired it would be one of the small front carb...
Forum: Pontiac - Street 12-12-2024, 11:19 AM
Replies: 94
Views: 6,811
Posted By ta man
I would confirm that the harmonic balancer hasn't...

I would confirm that the harmonic balancer hasn't slipped. Timing can be way off.
Forum: Pontiac - Street 12-03-2024, 10:11 AM
Replies: 18
Views: 1,888
Posted By Cliff R
With stock 4X 455 heads you aren't going to make...

With stock 4X 455 heads you aren't going to make enough compression for much of a camshaft upgrade. Decked/squared and tight quench with a decent cut on the heads I'd go with an 068 camshaft and top...
Forum: Pontiac - Street 12-02-2024, 01:06 PM
Replies: 18
Views: 1,888
Posted By SD455DJ
Your ’73 D-port 455 with the modifications to the...

Your ’73 D-port 455 with the modifications to the heads the Steved25 recommends will probably net you closer to 8.4 to 1 static compression with .040” quench distance if you ‘zero’ deck the block and...
Forum: Pontiac - Street 11-29-2024, 06:02 PM
Replies: 11
Views: 960
Posted By PAUL K
Cost the piston skirts if everything check out

Cost the piston skirts if everything check out
Forum: Pontiac - Street 10-10-2024, 08:56 PM
Replies: 9
Views: 1,606
Posted By Held for Ransom
Ray Klemm took over building after member Cliff R...

Ray Klemm took over building after member Cliff R stopped. I don't know if Ray is a member here, but is on Facebook. https://www.facebook.com/CRKPerformance/


...
Forum: Pontiac - Street 09-13-2024, 08:23 PM
Replies: 28
Views: 3,599
Posted By Formulas
Inside HEI module

Well i had 5 used HEI modules so i put a spare dist in a vice hooked up power to test.....two didnt make the grade... one was a 990 unit its the one more intact i cut it open with a small rotary...
Forum: Pontiac - Street 09-13-2024, 12:17 PM
Replies: 9
Views: 1,456
Posted By Stan Weiss
Dennis posted his a few years ago. Stan

Dennis posted his a few years ago.

Stan
Forum: Pontiac - Street 09-09-2024, 08:49 PM
Replies: 45
Views: 5,757
Posted By b-man
Could be a piece of the balancer hub has broken...

Could be a piece of the balancer hub has broken off and somehow got launched into the front of the pan from the inside.

It could have migrated back towards the front counterweight on the...
Forum: Pontiac - Street 08-25-2024, 06:07 PM
Replies: 20
Views: 2,506
Posted By Scarebird
Distributor cap can be cracked.

Distributor cap can be cracked.
Forum: Pontiac - Street 08-23-2024, 10:29 AM
Replies: 7
Views: 1,260
Posted By Cliff R
Those are the stock jet/rods for one of those...

Those are the stock jet/rods for one of those carburetors. It should have CV secondary rods as well. If you are rebuilding the carburetor I would suggest using one of my rebuild kits and getting a...
Showing results 1 to 25 of 96
Page 1 of 4 1 23 Last »

 
Forum Jump

All times are GMT -4. The time now is 07:15 PM.

 

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.

 




Contact Us Home
Copyright © 2017