LS2 shortblock: ported 5.3 heads or ported LS3 heads?
On The Tree
Joined: Mar 2009
Posts: 175
Likes: 1
From: shrewsbury, ma
we had a customer come in to the dealership a few weeks ago that has a new ss. i was on vacation but a co worker overheard him say it had mast ls3 heads and one of their cams, bbk long tubes, stock cat back and made 460 whp and 420 foot pounds on the same mustang dyno that my car was tuned on. i happen to have 5.3 prc heads on mine and it made 474/435. not the same lower end but same idea.
we had a customer come in to the dealership a few weeks ago that has a new ss. i was on vacation but a co worker overheard him say it had mast ls3 heads and one of their cams, bbk long tubes, stock cat back and made 460 whp and 420 foot pounds on the same mustang dyno that my car was tuned on. i happen to have 5.3 prc heads on mine and it made 474/435. not the same lower end but same idea.
On The Tree
Joined: Mar 2009
Posts: 175
Likes: 1
From: shrewsbury, ma
thanks. i guess either package can made to run hard. guess it comes down to what you might allready have or willing to spend on new stuff. i had 5.3 heads and got a 6.2 for a steal and had all my old ls1 top end stuff, so i just swapped it all over.
edit 6.2 short block only
edit 6.2 short block only
I'm gonna call bs on the MAST heads comment. Those two heads are totally different, it's like comparing 243's with TFS 215's. We all know with a properly spec'd cam and valvetrain the TFS will always come on top.
If he did then he must have a POS cam and valvetrain and intake. Just my .02
If he did then he must have a POS cam and valvetrain and intake. Just my .02
I'm gonna call bs on the MAST heads comment. Those two heads are totally different, it's like comparing 243's with TFS 215's. We all know with a properly spec'd cam and valvetrain the TFS will always come on top.
If he did then he must have a POS cam and valvetrain and intake. Just my .02
If he did then he must have a POS cam and valvetrain and intake. Just my .02
Agreeing with you. If the numbers on that ss were correct, then he really messed up on the cam selection.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo On The Tree
Joined: Mar 2009
Posts: 175
Likes: 1
From: shrewsbury, ma
Yup thats it. When I see the guy around again i will ask. Like i said i heard this second hand and he left the dyno sheet with the service writers. I found it hard to believe as well im not heard to bash mast trust me. When i find out ill let ya know.
