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Search took 0.18 seconds. Search: Posts Made By: steve25
Forum: Pontiac - Street Today, 12:27 PM
Replies: 3
Views: 4
Posted By steve25
Your first concern should be to step into the...

Your first concern should be to step into the 1980s with a piston that does not use 5/64” wide (high friction ) compression rings.
Forum: Pontiac - Street Today, 12:17 PM
Replies: 43
Views: 1,818
Posted By steve25
The 524886 was known as the number 6 hydro cam . ...

The 524886 was known as the number 6 hydro cam .
It was only used in 58 thru 62 motors and is a tad hotter then the 067 cam.

The 886 has 60 degrees of overlap while the 067 has 54.
Forum: Pontiac - Street Today, 06:51 AM
Replies: 43
Views: 1,818
Posted By steve25
Here’s the old yet still valid HO racing...

Here’s the old yet still valid HO racing recommendations for camming and gearing a 350.

The gearing recommendations are probably even more valid today with the under 10 to 1 compression that...
Forum: Pontiac - Street Today, 06:36 AM
Replies: 13
Views: 433
Posted By steve25
What Kenth is proposing in the above is a...

What Kenth is proposing in the above is a distinct possibility.

To find out yank out #8 spark plug and both lifters for #8 cylinder, kill the spark and have someone crank the motor over while you...
Forum: Pontiac - Street Today, 05:10 AM
Replies: 7
Views: 160
Posted By steve25
If it was a mechanical failure that cracked a...

If it was a mechanical failure that cracked a Bore then be sure to carefully have the line Bore for both the crank and Cam checked.

In the Cam still in the motor or at least the Cam bearings?
...
Forum: Pontiac - Street Today, 05:03 AM
Replies: 5
Views: 251
Posted By steve25
If it's a cast Silvio-Lite piston then like I...

If it's a cast Silvio-Lite piston then like I posted I recall them having near stock valve size notches for the 14 degree valve inclination angle and the early ones.

The early where about 3.4 to...
Forum: Pontiac - Street Yesterday, 05:20 PM
Replies: 3
Views: 162
Posted By steve25
I am at a complete loss as to why with any rocker...

I am at a complete loss as to why with any rocker ratio being used you can’t go by the sweep pattern seen.

Maybe the person you spoke to knows that the sharps are much closer to being 1.7 and has...
Forum: Pontiac - Street Yesterday, 05:12 PM
Replies: 5
Views: 251
Posted By steve25
Ken from what I recall in total it was 11Ccs, but...

Ken from what I recall in total it was 11Ccs, but no less than 10 CCs.

In terms of the compression height I have no recall on that spec for those.
Forum: Pontiac - Street Yesterday, 03:16 PM
Replies: 108
Views: 13,374
Posted By steve25
That 30 year old 327 build with ported double...

That 30 year old 327 build with ported double hump heads will not even make 380 Hp !
Those size piston domes needed to make 14.5 with a 327 cid motor will cut into flame travel like your buddy will...
Forum: Pontiac - Street Yesterday, 02:46 PM
Replies: 13
Views: 433
Posted By steve25
Was this block once fitted with lifter bore...

Was this block once fitted with lifter bore restrictiors ?
Maybe the one for 8 exh got left in?
Forum: Pontiac - Street Yesterday, 01:09 PM
Replies: 9
Views: 421
Posted By steve25
I agree with the above fully.

I agree with the above fully.
Forum: Pontiac - Street Yesterday, 11:31 AM
Replies: 9
Views: 421
Posted By steve25
I have never used used them, but that said I...

I have never used used them, but that said I always have a tube of the aluminum and brass Bars leak stuff in the glove box.
Forum: Pontiac - Street Yesterday, 11:28 AM
Replies: 37
Views: 1,167
Posted By steve25
I have had 4 of the ones drilled and tapped so...

I have had 4 of the ones drilled and tapped so just a case of the chance I guess!

Anyway if your not looking to run 4 bolt caps the non drilled and tapped blocks are stronger anyway.
Forum: Pontiac - Street Yesterday, 06:53 AM
Replies: 37
Views: 1,167
Posted By steve25
1970 was the last year for that 140 block after...

1970 was the last year for that 140 block after that the 455 used the 428455 part number block for a number of years and it seems that all of them where at least drilled and tapped for 4 bolt main...
Forum: Pontiac - Street Yesterday, 04:57 AM
Replies: 13
Views: 433
Posted By steve25
Get set to pull the Intake and the valley pan...

Get set to pull the Intake and the valley pan because your either going to have to replace that lifter or you will have taken that lifter apart and washed out the crap that's in there andnot allowing...
Forum: Pontiac - Street 09-22-2024, 02:59 PM
Replies: 11
Views: 340
Posted By steve25
With studs or bolts this is the way I have ...

With studs or bolts this is the way I have always added a bead of sealant during assembly and have never had a leak..

All the oil pan bolt holes are blind.
Forum: Pontiac - Street 09-21-2024, 03:39 PM
Replies: 14
Views: 562
Posted By steve25
Can’t beat that!

Can’t beat that!
Forum: Pontiac - Street 09-20-2024, 04:25 PM
Replies: 5
Views: 268
Posted By steve25
How has your heads been set up, for positive...

How has your heads been set up, for positive guide mounted valve seals?
Forum: Pontiac - Street 09-20-2024, 02:59 PM
Replies: 5
Views: 268
Posted By steve25
The comp cams springs require their retainer to...

The comp cams springs require their retainer to the stated pressure.

Get the SBI springs and if they ship as separate inner and outers be sure to install the inners so they are counter wound to...
Forum: Pontiac - Street 09-20-2024, 10:40 AM
Replies: 9
Views: 440
Posted By steve25
I don’t feel it’s too much cam as long as you...

I don’t feel it’s too much cam as long as you have better 2.93 rear gears and the converter is not stock stall if the car is a automatic.

One condition though is that cams valve lift.
The heads...
Forum: Pontiac - Street 09-20-2024, 04:52 AM
Replies: 53
Views: 2,521
Posted By steve25
Who's they? In that case how did you even...

Who's they?

In that case how did you even set the initial advance on the motor?
Forum: Pontiac - Street 09-19-2024, 06:22 PM
Replies: 43
Views: 1,818
Posted By steve25
A factory iron intake is perfectly fine for what...

A factory iron intake is perfectly fine for what you’re doing, they can produce far more HP than what your motor will be making.

If you can turn up a used Edelbrock performer then that’s a good...
Forum: Pontiac - Street 09-19-2024, 06:01 PM
Replies: 53
Views: 2,521
Posted By steve25
You might want to take advantage of this service...

You might want to take advantage of this service if your balancer is not cracked in the keyway area.
Forum: Pontiac - Street 09-19-2024, 05:23 PM
Replies: 53
Views: 2,521
Posted By steve25
Good news to hear! That much retard is right...

Good news to hear!

That much retard is right on the edge of the motor backfiring when you mash the throttle which would have been a more definitive clue to your issue assuming your firing order...
Forum: Pontiac - Street 09-19-2024, 03:40 PM
Replies: 53
Views: 2,521
Posted By steve25
As I recall what was the 360 hp motor in the GTO...

As I recall what was the 360 hp motor in the GTO was down rated to 345 in the Firebird by means of limiting the secondary throttle opening, but that being the case 345 Hp will not feel like a Turd,...
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