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Posts Made By:
steve25
Forum:
Pontiac - Street
Today, 11:24 AM
Replies:
2
Quadrajet fuel leak
Views:
58
Posted By
steve25
The hole in the air horn gasket for the pump...
The hole in the air horn gasket for the pump shaft could be getting oblonged, or the pump cup itself may not be sealing in the well and then instead of fuel only moving out into the primary's it...
Forum:
Pontiac - Street
Yesterday, 08:09 PM
Replies:
12
Safe level of horsepower in a 1977 XA 400 block build?
Views:
267
Posted By
steve25
How many here had a 78 TA with the W72 package,...
How many here had a 78 TA with the W72 package, let me jump the gun here.
I had two, one with 40k miles on it and another with 80k on it when I got it .
Both auto trans models.
This 80k one when...
Forum:
Pontiac - Street
Yesterday, 03:55 PM
Replies:
12
Safe level of horsepower in a 1977 XA 400 block build?
Views:
267
Posted By
steve25
I would have no concern with longevity running...
I would have no concern with longevity running such a block provided these guidelines are met.
Lighter aftermarket rods and pistons are used.
The stroke stays at 3.750”
A good balance job...
Forum:
Pontiac - Street
05-14-2024, 06:08 PM
Replies:
8
Brake feel in steering wheel during light application
Views:
330
Posted By
steve25
If you narrow it down to the front then jack the...
If you narrow it down to the front then jack the front up on each side and have someone spin the tire while you apply the brakes lightly.
If you do not feel anything then you know the issue is due...
Forum:
Pontiac - Street
05-14-2024, 05:43 PM
Replies:
15
How do you grind a Crankshaft this big?
Views:
616
Posted By
steve25
How do you grind a Crankshaft this big?
I’am stunned!
Forum:
Pontiac - Street
05-14-2024, 12:51 PM
Replies:
18
Changing valve seals 1970 350
Views:
542
Posted By
steve25
Johnny on my last motor I did springs on in car I...
Johnny on my last motor I did springs on in car I had to use rope.
The motor had thin rings and a non rope rear seal, so with air in one cylinder it would just spin over very slowly.
When I lowered...
Forum:
Pontiac - Street
05-13-2024, 06:00 AM
Replies:
18
Changing valve seals 1970 350
Views:
542
Posted By
steve25
The stock valve seals on any regular production...
The stock valve seals on any regular production Pontiac V8 are just the O rings like you used on your assembly of the 6X heads.
To change them in the car you need bring the piston up to TDC, stuff...
Forum:
Pontiac - Street
05-08-2024, 07:58 PM
Replies:
32
Recipe for a reliable 400 driver
Views:
1,635
Posted By
steve25
While the 71 96 casting heads flow good enough to...
While the 71 96 casting heads flow good enough to make 350 Hp even without headers they will not get your compression with a 400 up into the 9 to 1 range without milling them .060” on the deck and...
Forum:
Pontiac - Street
05-08-2024, 06:12 PM
Replies:
58
e head questions alot of questions
Views:
2,648
Posted By
steve25
8.750” to 9.500” should do it easy.
8.750” to 9.500” should do it easy.
Forum:
Pontiac - Street
05-06-2024, 06:02 AM
Replies:
10
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
568
Posted By
steve25
You shoukd also consider the fact that aluminum...
You shoukd also consider the fact that aluminum heads when fully up to temp will grow taller by .006" to .008" thus releaving some of your preload adjustment.
If you assume that you have perfect...
Forum:
Pontiac - Street
05-05-2024, 03:11 PM
Replies:
7
Vent on filler neck
Views:
347
Posted By
steve25
Use a vented cap since it will never get get...
Use a vented cap since it will never get get clogged off with age like the hose can.
Forum:
Pontiac - Street
05-05-2024, 03:09 PM
Replies:
10
Changing Roller Rocker Arms: Setting Pre-Load on Pumped Up Hydraulic Roller Lifters
Views:
568
Posted By
steve25
Is your valley pan and Intake on the motor. ...
Is your valley pan and Intake on the motor.
Has the motor been run before, or are the lifters empty?
Forum:
Pontiac - Street
05-03-2024, 02:30 PM
Replies:
19
What’s this 421 worth?
Views:
776
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, 11:30 AM
Replies:
20
Fuel pump?
Views:
925
Posted By
steve25
With only 3 psi to feed even just one Carb no...
With only 3 psi to feed even just one Carb no less 3 would not run the motor to full throttle and expect nothing less then the motor falling on its face within 4 seconds.or by the time you get...
Forum:
Pontiac - Street
05-03-2024, 09:31 AM
Replies:
1
Manifold bolt torque specs in aluminum head
Views:
155
Posted By
steve25
25ft lbs will get it done. Just first confirm...
25ft lbs will get it done.
Just first confirm that all the bolts thread in easy by hand and will not bottom out without having the manifold already clamped down.
Forum:
Pontiac - Street
05-01-2024, 07:42 PM
Replies:
24
Best alternative to the cast 8vr?
Views:
1,048
Posted By
steve25
With a 4.120” to a 4.150” bore and a 3.750”...
With a 4.120” to a 4.150” bore and a 3.750” stroke and a 72 Cc head every 4 CCs will change the compression close enough to a 1/4 point in regards to a street motor .
Forum:
Pontiac - Street
04-24-2024, 11:46 AM
Replies:
37
Rhoads lifters - still available?
Views:
2,439
Posted By
steve25
I am sure that Rhoads does not make a living off...
I am sure that Rhoads does not make a living off of just Pontiac lifters!
People who do not use them and have over Cam’ed motors are some of the other brands that we blow into the weeds with our...
Forum:
Pontiac - Street
04-21-2024, 07:29 AM
Replies:
6
Removing trans from 69GP
Views:
545
Posted By
steve25
Post 3 has the solution. To drop it out let...
Post 3 has the solution.
To drop it out let both headers dangle on there bolts as far as possible and loosen up the collectors bolts.
If you put anti-seize on at lease one side of your header...
Forum:
Pontiac - Street
04-19-2024, 08:25 AM
Replies:
55
1000+ cfm from a Qjet
Views:
4,052
Posted By
steve25
Two big fuel bowls and two needles and seats can...
Two big fuel bowls and two needles and seats can at times solve the problem of not having a pump back at the tank purely due to the fuel volume on hand.
The root cause many times is the G force...
Forum:
Pontiac - Street
04-18-2024, 08:40 AM
Replies:
55
1000+ cfm from a Qjet
Views:
4,052
Posted By
steve25
GM did not make the Q jet Rochester mainly did...
GM did not make the Q jet Rochester mainly did and then Carter for a while.
The 4 bbl test pressure has always been 1.5 hg which converts to 20.4 inches of water, not 24 inches of water.
When ...
Forum:
Pontiac - Street
04-18-2024, 06:31 AM
Replies:
55
1000+ cfm from a Qjet
Views:
4,052
Posted By
steve25
With any motor the bottom line is that at full...
With any motor the bottom line is that at full throttle , max rpm and under load a vacuum gauge will tell you if you need a higher flowing carb(s) or not.
Also too large of a carb can undue what...
Forum:
Pontiac - Street
04-17-2024, 05:08 PM
Replies:
28
Oil capacity
Views:
1,735
Posted By
steve25
Bop states that it’s a 5qt pan and with a filter...
Bop states that it’s a 5qt pan and with a filter change if you do not prime the filter then add 6 qts.
So I need to ask if the upper dip stick tube was driven into the block all the way, if not it...
Forum:
Pontiac - Race
04-17-2024, 07:48 AM
Replies:
14
Edelbrock Pro Port 440cfm heads, KRE MR1A block, intake build
Views:
1,037
Posted By
steve25
What circle track class allows 540 cid?
What circle track class allows 540 cid?
Forum:
Pontiac - Street
04-17-2024, 05:48 AM
Replies:
5
Screw in studs for a Crower 60916?
Views:
555
Posted By
steve25
Well then run your #15s and if you can get it...
Well then run your #15s and if you can get it done local enough and afford it get the studs pinned.
If you or a buddy have a decent drill press you can do it yourself.
Forum:
Pontiac - Street
04-16-2024, 04:46 PM
Replies:
7
A body accelerator pedals
Views:
443
Posted By
steve25
I don’t know the details of that part of the set...
I don’t know the details of that part of the set up, I do know that in terms of the pedal itself auto trans cars had the chrome trim around the pedal, mt cars did not,
Showing results 1 to 25 of 500
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