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Search took 0.93 seconds. Search: Posts Made By: Jay S
Forum: Pontiac - Street 04-14-2024, 04:55 PM
Replies: 4
Views: 294
Posted By Jay S
I recall your engine builder went thru two sets...

I recall your engine builder went thru two sets of lifter before he found 16 lifters he was happy with the crown’s machining. If he has not done that you may have made it too 2000 miles. That type...
Forum: Pontiac - Street 04-14-2024, 03:42 PM
Replies: 4
Views: 294
Posted By Jay S
I look on Ebay or other places that have old...

I look on Ebay or other places that have old stocks of NOS lifters before ordering new. If that falls thru I order these:
...
Forum: Pontiac - Race 04-11-2024, 06:29 PM
Replies: 33
Views: 1,136
Posted By Jay S
The 500 cubes limit on prostock started around...

The 500 cubes limit on prostock started around 1981. Everything was based on weight per cid before that.
Forum: Pontiac - Street 04-08-2024, 08:02 PM
Replies: 18
Views: 990
Posted By Jay S
Bulter performance released their own 1.65 rocker...

Bulter performance released their own 1.65 rocker arm series that has more clearance for bigger spring retainers. They look a lot like endurance Scorpion, says made by Scorpion.
...
Forum: Pontiac - Street 04-08-2024, 11:38 AM
Replies: 18
Views: 990
Posted By Jay S
Even recently with in the last couple years, ...

Even recently with in the last couple years, Bulter’s don’t recommend Scorpions on big roller cams.

Fatigue life of aluminum parts depends on the forces applied to those parts. There is a lot...
Forum: Pontiac - Street 04-06-2024, 09:26 PM
Replies: 18
Views: 990
Posted By Jay S
Are you referring to rockers arms, or the SR...

Are you referring to rockers arms, or the SR lifters made by Johnson with cast iron bodies that are called Scorpion’s?
Forum: Pontiac - Street 04-06-2024, 09:58 AM
Replies: 22
Views: 737
Posted By Jay S
Cold Case is what I have in my 77 TA. 550+ HP...

Cold Case is what I have in my 77 TA. 550+ HP street car…Nice radiator.
Forum: Pontiac - Street 04-06-2024, 08:49 AM
Replies: 67
Views: 2,189
Posted By Jay S
Yep, need know that too. The head were set up by...

Yep, need know that too. The head were set up by KRE though, I can probably tell him which retainers it has just from the spring IH.
Forum: Pontiac - Street 04-06-2024, 08:16 AM
Replies: 67
Views: 2,189
Posted By Jay S
I can help you with picking valve springs, just...

I can help you with picking valve springs, just need to know the IH of the springs. I don’t think you’re issue is with the valve springs though. It still sounds like your fuel pump won’t build...
Forum: Pontiac - Street 04-06-2024, 08:07 AM
Replies: 59
Views: 2,109
Posted By Jay S
If it had a OF cam it would have had all magnum...

If it had a OF cam it would have had all magnum lobes. OF2 has more aggressive XR’s on the intakes
Forum: Pontiac - Street 04-05-2024, 09:48 PM
Replies: 59
Views: 2,109
Posted By Jay S
Without getting too detailed on what you could do...

Without getting too detailed on what you could do different, for how yours failed, an improvement would be to have that HR cam ground on a 8620 core next go around. The 8620 surface is tougher, it...
Forum: Pontiac - Street 04-05-2024, 08:36 AM
Replies: 31
Views: 933
Posted By Jay S
Same here.

Same here.
Forum: Pontiac - Street 04-05-2024, 08:02 AM
Replies: 59
Views: 2,109
Posted By Jay S
I didn’t write that quite correctly, the 5150...

I didn’t write that quite correctly, the 5150 (common HR’s) and 8660 are lesser quality cores than a 8620, but the hardening on those cores actually is deeper than a 8620. The issue is more the...
Forum: Pontiac - Street 04-04-2024, 12:19 AM
Replies: 59
Views: 2,109
Posted By Jay S
It is doubtful you could save it anyway. Yes it...

It is doubtful you could save it anyway. Yes it is a Billet cam, but like most HR grinds from Comp it is one of the lesser quality billet 5150 or 8660 cores, the induction hardening is thinner than...
Forum: Pontiac - Street 04-03-2024, 09:48 AM
Replies: 59
Views: 2,109
Posted By Jay S
In that first photo I thought it was looking kind...

In that first photo I thought it was looking kind of tough also.

Just from that first photo, it was not a better 8620 cam core, it is obviously not a cast cam core either. Looks like a 5150 ...
Forum: Pontiac - Street 04-01-2024, 10:28 AM
Replies: 8
Views: 439
Posted By Jay S
HR lifters on the SR profiles that work ok are...

HR lifters on the SR profiles that work ok are generally higher ratio, high RPM SR profiles. The profiles that work ok are closer to what Steve posted, tend to look more like these:
Forum: Pontiac - Street 04-01-2024, 09:46 AM
Replies: 8
Views: 439
Posted By Jay S
You won’t be able to run .020” lash and run less...

You won’t be able to run .020” lash and run less spring pressure, because it will take the same spring pressure as it would if you ran SR lifters with .020” lash.

The HR lifter will get beat...
Forum: Pontiac - Street 03-31-2024, 08:50 AM
Replies: 81
Views: 4,168
Posted By Jay S
It is a little surprising Blueprint recommends...

It is a little surprising Blueprint recommends going 500 miles on the break in oil, I guess though if they recommend that with light loads for the first 500 it makes more sense. At some point the...
Forum: Pontiac - Street 03-31-2024, 08:37 AM
Replies: 67
Views: 2,189
Posted By Jay S
Good looking pumping numbers for your altitude. ...

Good looking pumping numbers for your altitude.

Sounds like you narrowed down the issue to fuel. Most likely the pump wore itself out and won’t pump enough pressure anymore.
Forum: Pontiac - Race 03-31-2024, 07:51 AM
Replies: 24
Views: 780
Posted By Jay S
Do you know what the coil bind is on your...

Do you know what the coil bind is on your springs? 1.76” IH with 1.65s might be getting a bit tight? You may want to try to would shim the seat pressure so it is balanced out with a plus 050”...
Forum: Pontiac - Street 03-30-2024, 10:59 AM
Replies: 81
Views: 4,168
Posted By Jay S
The added cylinder washing from carbureted...

The added cylinder washing from carbureted gasoline engines versus TBI, MPFI, and DI accounts for lot of the difference in modern stuff going extra miles over our old engines.
Forum: Pontiac - Street 03-30-2024, 10:39 AM
Replies: 81
Views: 4,168
Posted By Jay S
I like oil analysis on timely intervals, but...

I like oil analysis on timely intervals, but don’t do it often these days, and are often behind on maintenance. We have a fleet of off road and road equipment, it is hard to keep up. I see the...
Forum: Pontiac - Street 03-28-2024, 03:24 PM
Replies: 81
Views: 4,168
Posted By Jay S
I have read through quite a bit of it in the...

I have read through quite a bit of it in the past, it is indeed very long. Since this thread is more just talking about break in oil I will narrow his thoughts from his blog too only engine break...
Forum: Pontiac - Street 03-27-2024, 10:10 AM
Replies: 83
Views: 5,457
Posted By Jay S
Spoon feed poor info about the engine, dodge...

Spoon feed poor info about the engine, dodge questions about it and even confuse the octane you want to run from the initial question and that doesn’t make difference?

Then come back just to say...
Forum: Pontiac - Street 03-25-2024, 10:35 AM
Replies: 6
Views: 410
Posted By Jay S
I have extra set of stock length 6X stainless...

I have extra set of stock length 6X stainless intake valves, then you could keep all the stock geometry on the valve terrain. I would trade you if you wanted. I once thought I was ordering 2...
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