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Showing results 1 to 25 of 152
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Posts Made By:
Tim Corcoran
Forum:
Pontiac - Street
03-23-2024, 05:06 PM
Replies:
58
Best hydraulic roller lifters
Views:
2,098
Posted By
Tim Corcoran
On Comp's website for the 85701 Lifter, Travel:...
On Comp's website for the 85701 Lifter, Travel: .150 in, Recommended Preload: .100 in
Forum:
Pontiac - Street
03-22-2024, 10:18 PM
Replies:
8
455 in '67 GTO with Edlebrock Performer RPM and Holley ,fit under hood?
Views:
253
Posted By
Tim Corcoran
The factory cast iron manifold is a great...
The factory cast iron manifold is a great performance piece. Many want to install an aftermarket aluminum manifold just so they can go slower. Other choices that work well and are stock height are...
Forum:
Pontiac - Street
03-09-2024, 11:29 AM
Replies:
16
Compression test
Views:
906
Posted By
Tim Corcoran
There no reason to disconnect the fuel when doing...
There no reason to disconnect the fuel when doing a compression test cranking the engine does not pull fuel out of the carb as long as the choke is open and the throttle is held open. I use a remote...
Forum:
Pontiac - Street
03-07-2024, 01:01 PM
Replies:
26
RPM Intake / PCV location?
Views:
1,898
Posted By
Tim Corcoran
If you have the hood clearance you can put a...
If you have the hood clearance you can put a spacer between the carb and the manifold and drill and tap the spacer in the back or front. this would give you pretty good distribution.
Forum:
Pontiac - Street
03-07-2024, 12:52 PM
Replies:
14
Anyone know what this is?
Views:
985
Posted By
Tim Corcoran
Originally I thought it might be a muffler...
Originally I thought it might be a muffler bearing support bracket
Forum:
Pontiac - Street
03-01-2024, 01:25 PM
Replies:
13
Tall valve covers will not clear ac bracket?
Views:
622
Posted By
Tim Corcoran
Dump the A6 compressor they weigh a ton, are old...
Dump the A6 compressor they weigh a ton, are old technology and rob 50 HP when you turn the AC on. You can put on a new compressor weighs less than half of the A6 doesn't need the bracket in the rear...
Forum:
Pontiac - Street
02-20-2024, 03:31 AM
Replies:
12
Oil pan gasket issues
Views:
610
Posted By
Tim Corcoran
I agree about the rubber seal over the rear cap...
I agree about the rubber seal over the rear cap they are problematic and I don't use them. Some engines have a groove on the rear cap that is made for the cork seal and some are smooth like yours. SD...
Forum:
Pontiac - Street
02-18-2024, 11:52 AM
Replies:
19
71 400 Not firing on #4 and #6 cylinder
Views:
791
Posted By
Tim Corcoran
I agree it's unlikely that it's a vacuum leak on...
I agree it's unlikely that it's a vacuum leak on two cylinders that are not side by side but can't rule it out because it seems he has pretty much eliminated everything else. I did a lot of head...
Forum:
Pontiac - Race
02-16-2024, 06:45 AM
Replies:
20
RPM launch suggestions
Views:
1,034
Posted By
Tim Corcoran
My converter stalls at 4400 on the trans brake....
My converter stalls at 4400 on the trans brake. But I don't use the trans brake because I red light every time if I do. I launch just off idle around 1100 RPM to eliminate a bog if I go right off of...
Forum:
Pontiac - Street
02-15-2024, 05:09 AM
Replies:
14
Intake thoughts/ repop benefits but iron.
Views:
2,112
Posted By
Tim Corcoran
I'm curious about the difference between filling...
I'm curious about the difference between filling the heat cross over in the heads with aluminum and eliminating the cross over on the intake manifold. Wouldn't that have the same effect?
Forum:
THE LOBBY
02-13-2024, 05:18 PM
Replies:
25
Plymouth Duster
Views:
1,342
Posted By
Tim Corcoran
My 55 Chevy 210 sedan with the 235 six and 3 on...
My 55 Chevy 210 sedan with the 235 six and 3 on the tree was super reliable good fuel economy. The only thing I ever did to it was put gas in it and replace the brushes in the generator one. Such a...
Forum:
Pontiac - Street
02-13-2024, 04:56 PM
Replies:
36
389 in 3900# 55 Truck. Best heads, torque cam, and gear ratio?
Views:
1,607
Posted By
Tim Corcoran
If you want torque then I would get a stroker kit...
If you want torque then I would get a stroker kit with a 4.25 stroke...
Forum:
Pontiac - Street
02-13-2024, 04:39 PM
Replies:
67
Breaking in your new engine and Break In Oil
Views:
3,014
Posted By
Tim Corcoran
My brother in law is a chemist at Lucas oil and...
My brother in law is a chemist at Lucas oil and he develops special blended engine oil for Childress Racing, among other duties. Lucas makes some good products but also what my brother in law calls...
Forum:
Pontiac - Street
02-11-2024, 05:35 PM
Replies:
16
Anyone used this type of piston install tool before?
Views:
739
Posted By
Tim Corcoran
I have one like that and it works like a dream....
I have one like that and it works like a dream. Mines not from Summit it's from Power House Products but looks like the same tool
Forum:
Pontiac - Street
02-11-2024, 02:16 PM
Replies:
67
Breaking in your new engine and Break In Oil
Views:
3,014
Posted By
Tim Corcoran
Breaking in your new engine and Break In Oil
There is a lot of controversy about how to protect your new rebuilt engine during initial start up, on the dyno, at the track or on the street. With high levels of flat tappet cam failures this has...
Forum:
Pontiac - Street
02-06-2024, 04:41 AM
Replies:
52
Interesting video on current lifter quality
Views:
1,926
Posted By
Tim Corcoran
I would have preferred if they tested a Hy-Lift...
I would have preferred if they tested a Hy-Lift Johnson lifter rather then relying on speculation that the other brand lifters were in fact using the Hy-Lift Johnson body. Suppliers over the years...
Forum:
Pontiac - Street
02-01-2024, 02:25 AM
Replies:
57
Flat Tappet Camshafts & More
Views:
2,818
Posted By
Tim Corcoran
Harold Brookshire was a great camshaft designer...
Harold Brookshire was a great camshaft designer and contributed much to the industry. Most people know him from Ultradyne Cams but he was all over the place mostly behind the scenes the brains behind...
Forum:
Pontiac - Street
01-30-2024, 04:43 PM
Replies:
57
Flat Tappet Camshafts & More
Views:
2,818
Posted By
Tim Corcoran
They made the same point I was making in my other...
They made the same point I was making in my other post about break in oil for flat tappet cams and how detergents prevent the ZDDP from doing it's job. They also mentioned to get the correct oil...
Forum:
Pontiac - Race
01-30-2024, 06:11 AM
Replies:
14
cat solid rollers
Views:
744
Posted By
Tim Corcoran
If your looking for some quality solid roller...
If your looking for some quality solid roller lifters that won't break the bank I have been running these for years and have had good luck with them. Doug Herbert DHP-TPV-H-16 and made in the USA...
Forum:
THE LOBBY
01-29-2024, 10:01 AM
Replies:
156
What Pontiac would you buy?
Views:
7,926
Posted By
Tim Corcoran
Personally I don't think of cars as an investment...
Personally I don't think of cars as an investment to make money. I love cars to enjoy driving them, working on them, modifying them and sharing with friends. I don't buy a car to sell it I buy it for...
Forum:
Pontiac - Race
01-29-2024, 07:59 AM
Replies:
94
400 Stroker Build Documentary
Views:
8,606
Posted By
Tim Corcoran
Stan According to my machinist, the bank that...
Stan
According to my machinist, the bank that is being moved not only gives me more material on the thrust side but it is correcting the factory position of the bores in relation to the crank...
Forum:
Pontiac - Street
01-29-2024, 07:25 AM
Replies:
53
-06 or -08 for line size?
Views:
3,025
Posted By
Tim Corcoran
1/2 aluminum fuel line is readily available at...
1/2 aluminum fuel line is readily available at Summit, Jegs etc. It's easy to bend and will last longer than rubber steel braided line. And it does come in a roll.
Forum:
Pontiac - Street
01-29-2024, 07:15 AM
Replies:
19
400 vs 455
Views:
1,032
Posted By
Tim Corcoran
Either one will get you where you want to be I...
Either one will get you where you want to be I would say flip a coin. It sounds like you have a good plan for a very nice combo. A Butler Stroker kit is a great way to go, you can have your choice of...
Forum:
Pontiac - Race
01-28-2024, 07:45 AM
Replies:
94
400 Stroker Build Documentary
Views:
8,606
Posted By
Tim Corcoran
I jerked the bore on one bank to give me more...
I jerked the bore on one bank to give me more thickness on the thrust side plus put plenty of hard block to stiffen things up. I think it will be plenty strong, time will tell.
Forum:
Pontiac - Street
01-22-2024, 05:34 PM
Replies:
76
New member of the 400 Failed Lifter club
Views:
3,758
Posted By
Tim Corcoran
I recently read an article in Hemmings Muscle...
I recently read an article in Hemmings Muscle Machines about using proper break in oil, especially for flat tappet cams. Most people know you should not use standard auto parts store oil for an...
Showing results 1 to 25 of 152
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