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Search took 0.04 seconds. Search: Posts Made By: Gary H
Forum: Pontiac - Street 03-10-2024, 04:39 PM
Replies: 33
Views: 1,145
Posted By Gary H
I have a shop here in Jacksonville, Florida and...

I have a shop here in Jacksonville, Florida and do nothing but Pontiac's. We've built over 150 Pontiac engines. I think the combination you described is pretty good all the way around. Your vacuum...
Forum: Pontiac - Street 01-26-2024, 12:44 PM
Replies: 9
Views: 2,150
Posted By Gary H
Thanks Paul! I thought I had heard that a while...

Thanks Paul! I thought I had heard that a while back too. I'm going to use it.
Forum: Pontiac - Street 01-26-2024, 09:27 AM
Replies: 46
Views: 3,435
Posted By Gary H
I've built about 10 flat hydraulic flat tappet...

I've built about 10 flat hydraulic flat tappet lifter Pontiac engines over the last 2 years. No issues on them. I only use Hy-lift Johnson lifters though.
Forum: Pontiac - Street 12-08-2023, 06:44 PM
Replies: 65
Views: 6,464
Posted By Gary H
That's a BIG variance from main to main. If...

That's a BIG variance from main to main. If those numbers are accurate, I would take it back to the machine shop and see what's up. Just a FYI, Clevite bearings generally will measure thicker than...
Forum: Pontiac - Street 12-06-2023, 04:18 PM
Replies: 25
Views: 1,076
Posted By Gary H
If the pump has a return line from the pump to...

If the pump has a return line from the pump to the tank that was still hooked up during the 15 minutes of run time, then most of the fuel went back to the tank through the return.
Forum: Pontiac - Street 11-27-2023, 02:43 PM
Replies: 24
Views: 1,368
Posted By Gary H
What power piston spring did you put in the carb?...

What power piston spring did you put in the carb? The ram air IV cam doesn't create much vacuum in a 400 and the wrong spring may be causing the issue. You may also want to check and make sure you...
Forum: Pontiac - Street 11-27-2023, 09:46 AM
Replies: 5
Views: 655
Posted By Gary H
Check and see if the handheld is showing any RPM...

Check and see if the handheld is showing any RPM while trying to crank the engine.
Forum: Pontiac - Race 11-15-2023, 03:01 PM
Replies: 19
Views: 1,067
Posted By Gary H
If the valley pan you have is the single piece...

If the valley pan you have is the single piece one, it is very prone to suck oil through the PCV valve. I never use those. I'd buy a reproduction piece pan and use that.
Forum: Pontiac - Street 09-07-2023, 07:18 PM
Replies: 41
Views: 1,786
Posted By Gary H
.003 is a little on the loose side for a strictly...

.003 is a little on the loose side for a strictly street engine IMO. I'd try a different brand bearing to see if it's a little thicker to get you closer to .002 or .0025. In my experience, Clevite...
Forum: Pontiac - Street 06-08-2023, 07:12 PM
Replies: 11
Views: 609
Posted By Gary H
Sure sounds like it. I'd measure the grove and...

Sure sounds like it. I'd measure the grove and then contact Ross.
Forum: Pontiac - Street 05-30-2023, 07:48 AM
Replies: 21
Views: 1,401
Posted By Gary H
X2 on the above. I always use the cork seal on...

X2 on the above. I always use the cork seal on the seal with the tabs on it. Had much better results over the years with it.
Forum: Pontiac - Street 05-29-2023, 12:11 PM
Replies: 22
Views: 1,429
Posted By Gary H
No, It's the same identical casting as any other...

No, It's the same identical casting as any other block that year. Pontiac used the same casting number for all 71' - 74' 455 blocks except the SD blocks. The 73' - 74' 455 SD blocks had multiple...
Forum: Pontiac - Street 04-08-2023, 08:25 AM
Replies: 174
Views: 12,472
Posted By Gary H
So far, the maximum has been a 875 Hp pump gas...

So far, the maximum has been a 875 Hp pump gas engine. I'm currently building an all aluminum engine that has dual Torquestorms on it that should hit 1100 HP. Using Molnar crank and power adder rods
Forum: Pontiac - Street 04-07-2023, 07:32 PM
Replies: 174
Views: 12,472
Posted By Gary H
I do, and have, used Molnar rods and cranks in...

I do, and have, used Molnar rods and cranks in most of the builds I do for customers. As several have mentioned previously, the rods and cranks are dead on spec wise. I pay a little more up front...
Forum: 67-69 Firebird TECH 03-12-2023, 05:30 PM
Replies: 4,147
Views: 667,463
Posted By Gary H
Bought this car.

Because it was listed on this thread I recently bought this 72' Lemans GT. Amazingly solid southern California car with original paint. Thank you for posting these cars!
Forum: Pontiac - Street 02-17-2023, 10:06 PM
Replies: 16
Views: 1,163
Posted By Gary H
OK, I got a hydraulic roller from Mark at Luhn...

OK, I got a hydraulic roller from Mark at Luhn Performance. He had one in stock that was pretty much the specs I was looking for. Also ordered his oil pump for the engine as well.
Forum: Pontiac - Street 02-14-2023, 08:09 PM
Replies: 59
Views: 4,904
Posted By Gary H
I've had three different Pontiac engines in my...

I've had three different Pontiac engines in my shop that had bad recessed exhaust valves. Two engines had 6X heads on them, and other was a mid 60's head. One head had two exhaust valves sunk so...
Forum: Pontiac - Street 02-05-2023, 05:18 PM
Replies: 9
Views: 1,086
Posted By Gary H
Cloyes only for me. And I absolutely will not...

Cloyes only for me. And I absolutely will not use any RollMaster sets. I've had several in here that were off on sprocket inside dimensions and also when degreeing them in.
Forum: Pontiac - Race 01-31-2023, 07:15 PM
Replies: 21
Views: 2,509
Posted By Gary H
I run a 33" tall tire and 4:33 gears. At 154 MPH...

I run a 33" tall tire and 4:33 gears. At 154 MPH I'm at around 7700 RPM's. Partially depends on how tight your convertor is. I don't think a little less gear will hurt you as light as your car is.
Forum: Pontiac - Race 01-30-2023, 10:02 AM
Replies: 21
Views: 2,509
Posted By Gary H
I love the look and finish on your car! Just...

I love the look and finish on your car! Just curious on what tire size you have on it. With a 4:56 gear you may be turning A LOT of rpm's at the big end especially if you think it's going to run...
Forum: Pontiac - Street 01-03-2023, 07:25 PM
Replies: 18
Views: 1,923
Posted By Gary H
Factory 455 Crank Anomaly

I recently disassembled a 455 engine that had been installed in a 79' Trans Am by a previous owner. The engine ran great for what it was; 455 with 6X heads, decent camshaft, Holley, etc.. At the...
Forum: Pontiac - Race 12-31-2022, 05:44 PM
Replies: 47
Views: 5,836
Posted By Gary H
Picking up .12 ET, and 3.5 MPH with the...

Picking up .12 ET, and 3.5 MPH with the transmission change is incredible in my mind, especially at that fast of a ET and the toughness of the N.A. class you run in. I'm really surprised. ...
Forum: Pontiac - Race 12-27-2022, 09:52 AM
Replies: 47
Views: 5,836
Posted By Gary H
Interesting Paul. I didn't know that he went the...

Interesting Paul. I didn't know that he went the manual transmission route. Do you know how much it picked up?
Forum: Pontiac - Race 11-16-2022, 08:46 AM
Replies: 77
Views: 7,660
Posted By Gary H
I'm with Paul on this one. I don't mind a little...

I'm with Paul on this one. I don't mind a little back and forth regarding their opinion on what works or not. But some people go nuclear over every thread they're on. And then there's a certain...
Forum: 69-71 Judges only TECH 11-14-2022, 09:12 AM
Replies: 14
Views: 3,185
Posted By Gary H
That's a high dollar collection! I'd love to...

That's a high dollar collection! I'd love to have any of them, but the 70' black Judge would be my first choice.
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