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Forum: Pontiac - Race Today, 11:54 AM
Replies: 9
Views: 177
Posted By Steve C.
Thank you. For interest the intake lobe...

Thank you.

For interest the intake lobe correlates to HI-TORQUE .406" ROLLER lobe number 4208 on page 88.
The exhaust lobe is similar to a HI-TECH ROLLER lobe, some are listed on page 75. ...
Forum: Pontiac - Race Today, 11:06 AM
Replies: 9
Views: 177
Posted By Steve C.
For interest would you mind sharing the...

For interest would you mind sharing the information Comp came up with.

In particular I'd be interested in the lobe lift for both intake and exhaust.
I tried doing a cursory look at the 304 & 319...
Forum: Pontiac - Race Yesterday, 11:27 PM
Replies: 9
Views: 177
Posted By Steve C.
There is the name Kevin Mendenhall on that...

There is the name Kevin Mendenhall on that picture.

Could this be the same gentleman here:
https://www.bnmperformanceandmachining.com/

If so he might have more information to share.


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Forum: Pontiac - Race Yesterday, 10:06 PM
Replies: 9
Views: 177
Posted By Steve C.
110 LSA with 4 degrees advance ground in. ...

110 LSA with 4 degrees advance ground in.


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Forum: Pontiac - Street Yesterday, 02:16 PM
Replies: 17
Views: 680
Posted By Steve C.
A fwiw, for use with the OF 2.0 hydraulic roller...

A fwiw, for use with the OF 2.0 hydraulic roller cam Dave Bisschop has used the Comp Cams 26925 valve spring. It's a double spring that Comp Cams rates at 1.810" installed height with 141 lbs spring...
Forum: Pontiac - Street 05-08-2024, 10:37 PM
Replies: 17
Views: 680
Posted By Steve C.
AG is correct however based on my observations...

AG is correct however based on my observations the OF 2.0 is ordered with "B' suffix codes.

When first introduced the OF 2.0 was "Secret Squirrel" material. Dave revised version of the Old...
Forum: Pontiac - Street 04-29-2024, 12:00 PM
Replies: 37
Views: 2,222
Posted By Steve C.
Interesting videos.... ...

Interesting videos....

https://www.youtube.com/watch?v=adYrRk22GDQ

https://www.youtube.com/watch?v=cfGg15WgSEU

"A valvespring sees two times the stress of a connecting rod, the next mostly...
Forum: Pontiac - Street 04-29-2024, 11:55 AM
Replies: 37
Views: 2,222
Posted By Steve C.
Spring surge and improper distance from coil bind...

Spring surge and improper distance from coil bind can also be a factor on some occasions.


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Forum: Pontiac - Race 04-27-2024, 12:12 PM
Replies: 1
Views: 264
Posted By Steve C.
https://forums.maxperformanceinc.com/forums/showth...

https://forums.maxperformanceinc.com/forums/showthread.php?t=855412&highlight=LSM


The Moroso valve seat pressure tester will be a lower price unit.

We check new valve springs before they are...
Forum: Pontiac - Street 04-25-2024, 09:19 AM
Replies: 20
Views: 1,077
Posted By Steve C.
I agree with Tim's post regarding the long rod...

I agree with Tim's post regarding the long rod issue.

I'm of the opinion the increased popularity of the longer rod in a Pontiac situation came about with Jim Butler's involvement probably 30 or...
Forum: Pontiac - Street 04-25-2024, 08:33 AM
Replies: 58
Views: 2,167
Posted By Steve C.
ARP Head Stud Kit ...

ARP Head Stud Kit

https://arp-bolts.com/kits/arpkit-detail.php?RecordID=713

This one notes a year involved

https://arp-bolts.com/kits/arpkit-detail.php?RecordID=714
Forum: Pontiac - Street 04-24-2024, 09:29 AM
Replies: 58
Views: 2,167
Posted By Steve C.
Information on the Edelbrock link offers some...

Information on the Edelbrock link offers some notes on the subject. Personally I've always used a ARP stud kit on my heads.

https://www.edelbrock.com/pontiac-head-bolt-kit-8556.html
...
Forum: Pontiac - Street 04-24-2024, 04:05 AM
Replies: 20
Views: 1,077
Posted By Steve C.
Three links to explore..... How much...

Three links to explore.....

How much 'parasitic load' does a camshaft represent?

https://cr4.globalspec.com/thread/25338/How-much-parasitic-load-does-a-camshaft-represent

Valve Spring Power...
Forum: Pontiac - Street 04-23-2024, 06:19 PM
Replies: 20
Views: 1,077
Posted By Steve C.
Horsepower to compress the springs. That was...

Horsepower to compress the springs. That was addressed in my post #3


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Forum: Pontiac - Street 04-23-2024, 04:42 PM
Replies: 20
Views: 1,077
Posted By Steve C.
Agree, nice videos. In the first video he...

Agree, nice videos.

In the first video he mentions a way to figure out how much horsepower you can get potentially from the cylinder heads and a SuperFlow formula involving their CFM air flow. ...
Forum: Pontiac - Street 04-23-2024, 02:04 PM
Replies: 58
Views: 2,167
Posted By Steve C.
Has the age of the heads been verified ? The...

Has the age of the heads been verified ? The early heads prior to 3/15/02 used different head bolts than newer heads.


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Forum: Pontiac - Street 04-23-2024, 10:55 AM
Replies: 20
Views: 1,077
Posted By Steve C.
Regarding his point stating there is not really...

Regarding his point stating there is not really much gain when a port is maxed out in cfm air flow no matter how far you continue to open the valve it cannot flow any more air.

Regarding that, if...
Forum: Pontiac - Street 04-20-2024, 06:23 PM
Replies: 12
Views: 616
Posted By Steve C.
Further, if interested in running a street solid...

Further, if interested in running a street solid roller set up. Search for related posts by HWYSTR455, through the years he has run solid rollers on the street numerous times for the life of an...
Forum: Pontiac - Street 04-20-2024, 06:02 PM
Replies: 12
Views: 616
Posted By Steve C.
Agree with the comment above regarding valve...

Agree with the comment above regarding valve springs.

Check new valve springs at their verified installed height with their intended retainer in place using a Rimac machine BEFORE they are...
Forum: Pontiac - Street 04-20-2024, 05:45 PM
Replies: 12
Views: 616
Posted By Steve C.
64speed What solid roller used on your heads...

64speed

What solid roller used on your heads and how much spring pressure?




.
Forum: Pontiac - Street 04-20-2024, 01:26 PM
Replies: 12
Views: 616
Posted By Steve C.
https://www.motortrend.com/articles/how-much-valve...

https://www.motortrend.com/articles/how-much-valvespring-coil-bind-clearance-is-safe/
Forum: Pontiac - Street 04-20-2024, 01:05 PM
Replies: 12
Views: 616
Posted By Steve C.
"An important factor when selecting valve...

"An important factor when selecting valve springs, is choosing the correct seat pressure, open pressure, and spring rate for the camshaft being used."

And watch your distance to coil bind.
...
Forum: Pontiac - Street 04-20-2024, 09:44 AM
Replies: 20
Views: 750
Posted By Steve C.
A fwiw tid bit when shopping for electric...

A fwiw tid bit when shopping for electric fans...........

Years ago there was no common industry standard for rating electric automotive fans, I presume the same situation today. Most companies...
Forum: Pontiac - Race 04-18-2024, 07:40 PM
Replies: 61
Views: 3,737
Posted By Steve C.
"Who manufactured the parts that Ken Brewer...

"Who manufactured the parts that Ken Brewer sold?"

I'm not sure about all his products, but this regarding the first Tomahawk intakes.
Posted in 2007...

"The product was developed and brought...
Forum: Pontiac - Street 04-17-2024, 08:48 PM
Replies: 23
Views: 1,384
Posted By Steve C.
How much oil is up inside a running engine ? ...

How much oil is up inside a running engine ?

This situation is certainly a plus...

"...our Performer RPM, valve placement and port size limited the space for oil drain-back holes," says Garcia....
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