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Forum: Pontiac - Street 12-01-2021, 10:41 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
Yup, that's why I posted the article. LS3 MAST...

Yup, that's why I posted the article. LS3 MAST heads flow 314 at .700 lift, which is noted in that link. They cost more than Butler 340+ heads. The conversation revolved around cost and flow.



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Forum: Pontiac - Street 11-30-2021, 12:43 PM
Replies: 241
Views: 26,968
Posted By HWYSTR455
It's totally the norm, which is why I don't buy...

It's totally the norm, which is why I don't buy onto the LS lifter conversion for Pontiacs. All you have to do is Google 'LS lifter noise' or do a search on YouTube, and you will see how normal it...
Forum: Pontiac - Street 11-30-2021, 12:22 PM
Replies: 241
Views: 26,968
Posted By HWYSTR455
"The CNC LS9 heads do away with the “swirl wing”...

"The CNC LS9 heads do away with the “swirl wing” and surpass even a CNC LS3 head with 322.7cfm at .600-in. lift on the intake and 218.2cfm at .700-in. lift on the exhaust."
...
Forum: Pontiac - Street 11-30-2021, 11:52 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
Not true. Stock LS heads flow 244/206, and that's...

Not true. Stock LS heads flow 244/206, and that's at .700 lift. Even the bigger, performance heads only flow like 305, and that's doctored.
...
Forum: Pontiac - Street 11-30-2021, 11:46 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
If I hear one more LS swap guy cry about noisy...

If I hear one more LS swap guy cry about noisy lifters, I will puke. That's how many there are. And even if you get a warranty, you still have to do the work. It gets old after the 3rd or 4th one....
Forum: Pontiac - Street 11-30-2021, 10:55 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
Now that's a better comparison, but the GM crate...

Now that's a better comparison, but the GM crate engines do have issues, lots a folks around me have complained about them. The non-LS ones too. But that's still a good baseline.

12,500 for that...
Forum: Pontiac - Street 11-30-2021, 10:39 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
My point was just that IF you could get a running...

My point was just that IF you could get a running boneyard Pontiac engine, the cost factor would be out the window. Regardless if it's a street, race, etc purpose.

You just can't compare a...
Forum: Pontiac - Street 11-30-2021, 10:13 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
Again, you are not building an LS from the ground...

Again, you are not building an LS from the ground up, so it's not apples to apples. I remember when 455s were in the boneyards for around the same cost. So you can't compare a boneyard engine build...
Forum: Pontiac - Street 11-30-2021, 09:29 AM
Replies: 241
Views: 26,968
Posted By HWYSTR455
Was trying to stay out of this, but... You...

Was trying to stay out of this, but...

You can't compare a boneyard LS truck engine cost to a purpose-built Pontiac engine cost, far from apples to apples. You build a purpose-built LS, and you...
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