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Forum: Pontiac - Street 08-26-2021, 11:31 PM
Replies: 22
Views: 1,742
Posted By TransAm 474
What we did when using the Lunati 704, was shim...

What we did when using the Lunati 704, was shim the Crower 68404 spring to install at 1.550" with stock length Ferrea valves. This puts them around 125-130 lb on the seat and 310-315 lbs over the...
Forum: Pontiac - Street 08-25-2021, 02:01 PM
Replies: 23
Views: 2,105
Posted By TransAm 474
With a 4.25" stroke crankshaft and around 9.5...

With a 4.25" stroke crankshaft and around 9.5 compression, I would look at the Lunati VooDoo 704 camshaft, if you can find one. We are building a 467(W72 400 with 4.250" stroke), and that is what we...
Forum: Pontiac - Street 08-20-2021, 02:52 PM
Replies: 22
Views: 1,144
Posted By TransAm 474
The Ferrea 5000 is all we have ever used in any...

The Ferrea 5000 is all we have ever used in any street build, they are plenty good. NEVER trust 50 year old factory valves though. The Ferrea 5000 is a cheap upgrade compared to what it would cost to...
Forum: Pontiac - Street 08-19-2021, 01:25 PM
Replies: 16
Views: 971
Posted By TransAm 474
Cliff just got through doing ours as well, I know...

Cliff just got through doing ours as well, I know he has a backlog right now, but most do at this point, and he ended up getting ours done way faster than he even estimated. This makes the second...
Forum: Pontiac - Street 07-21-2021, 02:06 PM
Replies: 64
Views: 3,723
Posted By TransAm 474
Currently 8-9 weeks for the SMI 800cfm Qjet that...

Currently 8-9 weeks for the SMI 800cfm Qjet that we ordered for a 467 we are building. JET Performance said they would ship me one the same day, but after doing my research, and reading the reviews...
Forum: Pontiac - Street 07-03-2021, 03:57 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Thanks! I'm gonna go ahead and place my order at...

Thanks! I'm gonna go ahead and place my order at Butlers for the 9.200" .116" wall. I appreciate all of your help very much.
Forum: Pontiac - Street 07-03-2021, 03:29 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Ok guys, we got the new rockers today, and...

Ok guys, we got the new rockers today, and remeasured using the adjustable pushrod at 9.200". To me, the witness marks look even better with the new rockers, and I think the 9.200" is the winner. One...
Forum: Pontiac - Street 07-01-2021, 12:49 AM
Replies: 19
Views: 1,009
Posted By TransAm 474
While we haven't used it for an MSD ignition yet,...

While we haven't used it for an MSD ignition yet, we just purchased the Innova 5568 light, and have used it with a Mallory Hyfire 685 ignition system, which is a multispark as well, and it works...
Forum: Pontiac - Street 06-28-2021, 01:29 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Thanks guys!, as far as what I have measured so...

Thanks guys!, as far as what I have measured so far(with the current stock rockers), what length do you guys favor the most? I was leaning towards the 9.200" by the time a person figures in .050" or...
Forum: Pontiac - Street 06-28-2021, 08:55 AM
Replies: 35
Views: 1,098
Posted By TransAm 474
We are checking with the factory rockers, but...

We are checking with the factory rockers, but they are in excellent condition. We will be using New Comp Cams replacement 1251-16 though, which are exact specification as the stock rocker that we are...
Forum: Pontiac - Street 06-27-2021, 10:22 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
I was thinking by the time a person preloads the...

I was thinking by the time a person preloads the lifter .050" or so, the 9.200" may end up being the best, although the witness mark on the 9.150 is pretty centered, but that is WITHOUT any lifter...
Forum: Pontiac - Street 06-27-2021, 10:19 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Here is the witness marks, one on the base...

Here is the witness marks, one on the base circle, one at 2/3 lift, both with the lifter at Zero Lash, at 9.150".
Forum: Pontiac - Street 06-27-2021, 10:07 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Ok, here is full sweep with the 9.150" pushrod...

Ok, here is full sweep with the 9.150" pushrod and 1 full turn of the engine. Lifter at zero lash.
Forum: Pontiac - Street 06-27-2021, 09:43 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
We will do the full sweep with the 9.150" and...

We will do the full sweep with the 9.150" and report back in just a few minutes
Forum: Pontiac - Street 06-27-2021, 09:39 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Thanks Pastry, I just edited my post above (#19)...

Thanks Pastry, I just edited my post above (#19) while you were posting a reply, just incase you missed it
Forum: Pontiac - Street 06-27-2021, 08:54 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
So, reviewing and comparing all of my above...

So, reviewing and comparing all of my above pictures, am I correct in thinking that it seems that it may like the 9.200" pushrod the best, especially since .050" or so of lifter Preload still has to...
Forum: Pontiac - Street 06-27-2021, 08:46 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Ok, we tried one more time, this time with the...

Ok, we tried one more time, this time with the pushrod adjusted to 9.250". These ARE two different marks, one with lifter on the base circle, the other mark is at 2/3 lift. Lifter was set at Zero...
Forum: Pontiac - Street 06-27-2021, 08:24 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Here are the two witness marks, one on the base...

Here are the two witness marks, one on the base circle, the other at 2/3 lift, both with the lifter adjusted to zero lash, and the pushrod adjusted at 9.200"... to me, the 9.200" pushrod seems to be...
Forum: Pontiac - Street 06-27-2021, 08:01 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Witness Mark with lifter on base circle, lifter...

Witness Mark with lifter on base circle, lifter at zero lash, adjustable pushrod set at 9.200"
Forum: Pontiac - Street 06-27-2021, 07:54 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Witness Mark with lifter on base circle, lifter...

Witness Mark with lifter on base circle, lifter at zero lash, pushrod adjusted to 9.150"
Forum: Pontiac - Street 06-27-2021, 07:47 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Here is the witness mark with the lifter on the...

Here is the witness mark with the lifter on the base circle, lifter at zero lash, pushrod adjusted to 9.100"
Forum: Pontiac - Street 06-27-2021, 07:43 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Here is what it looks like the the pushrod...

Here is what it looks like the the pushrod adjusted to 9.100"
Forum: Pontiac - Street 06-27-2021, 07:34 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Thanks Steve, we built the heads, and took some...

Thanks Steve, we built the heads, and took some off the retainers and cut the guides down for Positive seals, so we made sure everything had plenty of clearance when we put them together. All of them...
Forum: Pontiac - Street 06-27-2021, 07:23 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Here is the pattern with the adjustable pushrod...

Here is the pattern with the adjustable pushrod at 9.200"
Forum: Pontiac - Street 06-27-2021, 06:58 PM
Replies: 35
Views: 1,098
Posted By TransAm 474
Thanks Cliff, we haven't tried the adjustable...

Thanks Cliff, we haven't tried the adjustable pushrod yet, we just did it with a factory pushrod first to see where it was at, and this was the result. We will check it with the adjustable pushrod...
Showing results 1 to 25 of 500

 
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