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Search took 0.03 seconds. Search: Posts Made By: Gach
Forum: Pontiac - Street 02-14-2024, 01:39 PM
Replies: 81
Views: 5,403
Posted By tom s
These threads are interesting,they pop up from...

These threads are interesting,they pop up from time to time and NONE have ever influenced me to change what I have been doing for years and I’m sure a lot of others are the same?Tom
Forum: Pontiac - Street 02-14-2024, 12:42 PM
Replies: 81
Views: 5,403
Posted By Ram Air IV Jack
True, but the internet is full of bilge, opinions...

True, but the internet is full of bilge, opinions from yahoo's, and generally about 75% to 80% inaccurate!! Cliff Ruggles speaks of this all the time and has seen many of his customers hornswoggled...
Forum: Pontiac - Street 02-13-2024, 12:51 AM
Replies: 22
Views: 1,546
Posted By NeighborsComplaint
Anecdotal info on failed bottom ends after top end rebuilds/upgrades.

In another amusing, now closed post this "wive's tale" was brought up. I'm in my '70's and can attest to how this wive's tale grew legs ... because it happened, a lot.

The fact is increasing the...
Forum: Pontiac - Street 02-09-2024, 04:56 PM
Replies: 91
Views: 4,670
Posted By PAUL K
Another thing to remeber, the ports are too high...

Another thing to remeber, the ports are too high in the manifold itself. That needs to be dealt with if you want to make good power.
Forum: Pontiac - Street 02-06-2024, 09:02 PM
Replies: 98
Views: 5,166
Posted By Verdoro 68
It was already spinning. I never really paid much...

It was already spinning. I never really paid much attention to diffs because I never had anything powerful enough to potentially break one!
Forum: Pontiac - Street 02-04-2024, 01:46 PM
Replies: 264
Views: 16,813
Posted By 78w72
Watching those high end auctions causes delusions...

Watching those high end auctions causes delusions of grandeur, its called barret jackson syndrome- Where guys with average or even very nice cars see a car the same year or type as theirs that is a...
Forum: Pontiac - Street 01-31-2024, 01:34 PM
Replies: 22
Views: 1,096
Posted By Keith Seymore
..... ...

.....

https://forums.maxperformanceinc.com/forums/attachment.php?attachmentid=627617&stc=1&d=1706722406
...
Forum: Pontiac - Street 01-31-2024, 01:32 PM
Replies: 22
Views: 1,096
Posted By Keith Seymore
Sorry - took me a while to find these. I...

Sorry - took me a while to find these.

I wrote these as a development engineer for inclusion in the S truck service manual. Hopefully they are self explanatory.

The only thing I would add is...
Forum: Pontiac - Street 01-31-2024, 07:46 AM
Replies: 57
Views: 3,611
Posted By Cliff R
Some good points made. Very complex topic. ...

Some good points made.

Very complex topic. Since I came up thru all of this and had 100 percent success with flat tappet camshafts for nearly half a century now I'm thinking I either dodged a...
Forum: Pontiac - Street 01-29-2024, 10:24 PM
Replies: 19
Views: 1,231
Posted By b-man
The 12-bolt is lighter and keeps the car all GM. ...

The 12-bolt is lighter and keeps the car all GM.

I actually went with the 8.5 10-bolt because it’s lighter than the 12 and has less parasitic loss than a 12-bolt simply because of the 8.5” ring...
Forum: Pontiac - Street 01-28-2024, 11:22 PM
Replies: 57
Views: 4,848
Posted By blueghoast
LMAO GT

LMAO

GT
Forum: Pontiac - Street 01-28-2024, 07:21 PM
Replies: 64
Views: 3,470
Posted By Scarebird
The 366 that was supposed to replace the 350 and...

The 366 that was supposed to replace the 350 and 400 was a round port.

So to me if you are starting from scratch (no hedders, manifolds) I would go round.
Forum: Pontiac - Street 01-28-2024, 05:48 PM
Replies: 161
Views: 9,719
Posted By Schurkey
Keep in mind that the primary side of a Q-Jet is...

Keep in mind that the primary side of a Q-Jet is substantially smaller than any of the 2GCs, particularly the larger ones that would have been installed on a 400+ CID engine.

The difference...
Forum: Pontiac - Street 01-28-2024, 01:28 AM
Replies: 46
Views: 3,727
Posted By 64speed
I am not sure what your engine combo is but on...

I am not sure what your engine combo is but on the old ass o meter from the roller cam I replaced with the 60919 HFT I can tell no difference in performance. Great cam if it’s a fit for your combo
Forum: Pontiac - Street 01-26-2024, 12:29 AM
Replies: 46
Views: 3,727
Posted By MidnightAuto
3 years ago - crower 60919 with the cam saver...

3 years ago - crower 60919 with the cam saver lifters. I did not check anything. Tremendous amount of cam lube, purple break in oil. Started right up, kept between 2 - 4 k. No issues
Forum: Pontiac - Street 01-24-2024, 07:52 PM
Replies: 161
Views: 9,719
Posted By Jay S
The G tech meter we had provided pretty high mph...

The G tech meter we had provided pretty high mph numbers, but seemed fairly accurate on 1/4 mile times. Not close to as accurate as a draggy.

The 750 Holley’s I have had worked good out of the...
Forum: Pontiac - Street 01-21-2024, 02:32 PM
Replies: 18
Views: 1,660
Posted By Cliff R
6X-4 heads typically come in around 92cc in the...

6X-4 heads typically come in around 92cc in the combustion chambers. If you deck/square the block for close to zero, .039" Felpro head gasket and take a little off the heads you'll be closer to 10...
Forum: Pontiac - Street 01-20-2024, 12:33 AM
Replies: 84
Views: 6,780
Posted By HWYSTR455
I've had a factory 455 crank break on me, so I'm...

I've had a factory 455 crank break on me, so I'm in the other boat, replace it.

If you're doing rods and pistons, adding a stroker crank may not be as much as you think. It might even come out...
Forum: Pontiac - Street 01-20-2024, 12:14 AM
Replies: 51
Views: 3,024
Posted By HWYSTR455
Stroker kits use a different piston pin height...

Stroker kits use a different piston pin height and different length rods.

If the bores look very good with no gouges in them then it would probably be safe to go with the .030 over kit. They...
Forum: Pontiac - Street 01-19-2024, 07:56 PM
Replies: 84
Views: 6,780
Posted By PunchT37
Like Gach said, good parts are needed for higher...

Like Gach said, good parts are needed for higher rpm`s more than hp levels. Pontiac engines will actually run forever if used as designed for lower rpm`s. Even with higher hp levels. Problem is,...
Forum: Pontiac - Street 01-19-2024, 07:14 PM
Replies: 84
Views: 6,780
Posted By PunchT37
I wouldn`t sweat that at all. Use your factory...

I wouldn`t sweat that at all. Use your factory caps. Get some 4340 rods, a good set of full float pistons, AND a good balancer/flexplate. All balanced, of course.
Forum: Pontiac - Street 01-19-2024, 08:53 AM
Replies: 51
Views: 3,024
Posted By HWYSTR455
Assuming you retain the existing bore. ...

Assuming you retain the existing bore.

Again, I would bet my left xxx that the bores have taper and need to be cleaned up. Not to mention the cost of a set of custom pistons.

Then there's the...
Forum: Pontiac - Street 01-18-2024, 04:17 PM
Replies: 51
Views: 3,024
Posted By blueghoast
I like the factory cranks, pretty strong and good...

I like the factory cranks, pretty strong and good for some serious HP
Plus I like the 4-inch stroke too.

GT
Forum: Pontiac - Street 01-18-2024, 12:12 AM
Replies: 9
Views: 775
Posted By Jay S
I found that those particular lifters don’t have...

I found that those particular lifters don’t have much for metering the oil to the top end compared to other brands, they will flood the top end with oil. I tried running them with no restrictors...
Forum: Pontiac - Street 01-17-2024, 09:13 PM
Replies: 9
Views: 775
Posted By blueghoast
I run a solid roller once without restricters and...

I run a solid roller once without restricters and kicked a rod out on the dyno.
I won't run a solid anything without some kind of restricters.

GT
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