LSX 454 Build - Affordable Heads/Intake Options
03-19-2016, 09:05 PM
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LSX 454 Build - Affordable Heads/Intake Options Hey guys,
I took the plunge on an LSX 454 build with 4.185" bore and 4.125" stroke. We're going with all forged internals and a solid roller cam, specs TBD depending on our heads/intake combo. I want to get this car completed on a budget with room to grow in the future, including boost in a year or so. My goals are high N/A power for now. Here's my two options:
Option 1: Trickflow GenX 255 ported heads with Ported LS3 Intake
Option 2: PRC 285cc LS7 heads with Ported LS7 Intake
My shop has the GenX heads onsite for a smoking deal, but I think I'm leaning towards the PRC heads for about $600 more. I've heard the PRC heads have a higher CFM and the LS7 style allows me to get the MSD intake down the road for a little extra power. This is all assuming PRCs lead time is less than 4 weeks. I'm also open to other sub $3k heads.
EDIT: Schedule is a concern on this build. It needs to be completed within 4 weeks or less.
I took the plunge on an LSX 454 build with 4.185" bore and 4.125" stroke. We're going with all forged internals and a solid roller cam, specs TBD depending on our heads/intake combo. I want to get this car completed on a budget with room to grow in the future, including boost in a year or so. My goals are high N/A power for now. Here's my two options:
Option 1: Trickflow GenX 255 ported heads with Ported LS3 Intake
Option 2: PRC 285cc LS7 heads with Ported LS7 Intake
My shop has the GenX heads onsite for a smoking deal, but I think I'm leaning towards the PRC heads for about $600 more. I've heard the PRC heads have a higher CFM and the LS7 style allows me to get the MSD intake down the road for a little extra power. This is all assuming PRCs lead time is less than 4 weeks. I'm also open to other sub $3k heads.
EDIT: Schedule is a concern on this build. It needs to be completed within 4 weeks or less.
Last edited by LinxuSx; 03-19-2016 at 09:44 PM.
03-19-2016, 09:31 PM
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TFS LS7 Heads!
MAMOFIED over your budget but an Awesome Head.
400+ CFM @ .600" from >265 CC Intake Port.
Especially combined with MAMOFIED MSD Intake.
MAMOFIED over your budget but an Awesome Head.
400+ CFM @ .600" from >265 CC Intake Port.
Especially combined with MAMOFIED MSD Intake.
03-19-2016, 09:39 PM
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That would be a solid setup! But, I don't think we'd have the time. We really only have about 4 weeks before this needs to be completed and in our hands. Although Tony Mamo does amazing work, I'm not sure he could turn it around that fast.
03-19-2016, 09:44 PM
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03-19-2016, 09:47 PM
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That's where I'm leaning. Although the LS3 heads are ported quite a bit and could maybe achieve 400 CFM or close to it.
Awesome - thanks for the feedback! Do you recall how long it took to receive them?
Awesome - thanks for the feedback! Do you recall how long it took to receive them?
03-20-2016, 11:36 AM
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Thank you everyone for all the input. You've pretty much solidified my decision to go with PRC LS7 heads and a stock ported LS7 intake for now. I'm hoping for 580-600 whp on this setup, with room to go once we add an MSD Intake and 2" Headers.
03-20-2016, 04:40 PM
#15
You should reach out to me.....I have some info regarding your situation I think you would be interested in hearing.
PM or email is probably best
Regards,
Tony
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Anything worth doing is worth doing well. Build it right the first time....its alot cheaper than building it twice!!
www.mamomotorsports.com
Tony@MamoMotorsports.com
Anything worth doing is worth doing well. Build it right the first time....its alot cheaper than building it twice!!
03-20-2016, 05:24 PM
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03-20-2016, 10:05 PM
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I have PRC 285's and have been happy with them. I also agree with Hi-Po, you may want to rethink that bore and stroke if you plan on boost. Your head gaskets will be extremely thin between the cylinders.