Ls2 408 stroker
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It's a big pain in the ***.
I will stick to cam motion.
Good company to deal with.
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You will probably never gain because the Intake cant flow enough to support the rpm range of the cam. Either go all out and make it a high rpm monster or put a smaller cam back into it and have a torquey street car. Whatever you do make sure heads have optimal port design for desired rpm range and lift.
Thread Starter
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You will probably never gain because the Intake cant flow enough to support the rpm range of the cam. Either go all out and make it a high rpm monster or put a smaller cam back into it and have a torquey street car. Whatever you do make sure heads have optimal port design for desired rpm range and lift.
The FAST intake also made 535rwhp on a 468CI LSX engine with MAST 305 heads which my tuner did last year. This was with a LLSR from cam motion. 252/264 .680 .680 114 LSA+4
Obviously it would have made more hp with another intake.
However, this thing has so much torque throughout the rpm rage that it still spins the tyres at 75mph.
This engine is screaming for that new FAST polymer tunnel ram intake.
The intake does flow enough because it has made 520rwhp on my engine once before when everything was running right. With the mid length runner intake too it should comfortably spin to 7500rpm.
The FAST intake also made 535rwhp on a 468CI LSX engine with MAST 305 heads which my tuner did last year. This was with a LLSR from cam motion. 252/264 .680 .680 114 LSA+4
Obviously it would have made more hp with another intake.
However, this thing has so much torque throughout the rpm rage that it still spins the tyres at 75mph.
This engine is screaming for that new FAST polymer tunnel ram intake.
The FAST intake also made 535rwhp on a 468CI LSX engine with MAST 305 heads which my tuner did last year. This was with a LLSR from cam motion. 252/264 .680 .680 114 LSA+4
Obviously it would have made more hp with another intake.
However, this thing has so much torque throughout the rpm rage that it still spins the tyres at 75mph.
This engine is screaming for that new FAST polymer tunnel ram intake.
Thread Starter
TECH Addict
Joined: Sep 2010
Posts: 2,898
Likes: 467
You wouldn't need to build for torque on a 468.
It would make too much of it by accident.
I would go for all out power with somewhat decent driveability.
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The intake does flow enough because it has made 520rwhp on my engine once before when everything was running right. With the mid length runner intake too it should comfortably spin to 7500rpm.
The FAST intake also made 535rwhp on a 468CI LSX engine with MAST 305 heads which my tuner did last year. This was with a LLSR from cam motion. 252/264 .680 .680 114 LSA+4
Obviously it would have made more hp with another intake.
However, this thing has so much torque throughout the rpm rage that it still spins the tyres at 75mph.
This engine is screaming for that new FAST polymer tunnel ram intake.
The FAST intake also made 535rwhp on a 468CI LSX engine with MAST 305 heads which my tuner did last year. This was with a LLSR from cam motion. 252/264 .680 .680 114 LSA+4
Obviously it would have made more hp with another intake.
However, this thing has so much torque throughout the rpm rage that it still spins the tyres at 75mph.
This engine is screaming for that new FAST polymer tunnel ram intake.
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Joined: Jan 2019
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Buy a aftermarket head for what and still got a bottle neck..Sounds like BS. Added if you were to buy a ls3 head get Liberty Ls3 11° degree heads for $400 each...but you don't need another set of heads.
*Fix what you have & diagnose what's the problem brother .....
*Fix what you have & diagnose what's the problem brother .....
Frankenstein has new ports for the liberty head that's cheap and very nice. 273cc runner and 2.165/1.60 valves 11 deg angle. $2400 and will use his rocker arms.
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I knew months before about the subject...(remember Lil John was the first guy who really posted about Chris & Ls3 heads)....but back to the guy saying B needs new heads. Explain Y? Cause it's BS what you typed.
Last edited by Smokey B; Oct 1, 2019 at 04:35 PM.
I would go to the Ultra Lite Pro rockers, swap to a milder cam lobe, and run the 1207X spring.
Or keep what you have, pull the heads, go with the Cam Motion LLR and their Crane-built variant or the Morel 5425s.
I went with the Crane-built HIPPO lifter as it's a street car. Otherwise, the 5425s are plenty. They also have drop in Morels that use the trays. But I would not use trays on a solid lifter setup.
You don't need bushed lifters with 500lbs of spring pressure. If you had 800lbs, then yes, you have to run something like the Morel Ultimates or Jesel bushed stuff.
Or keep what you have, pull the heads, go with the Cam Motion LLR and their Crane-built variant or the Morel 5425s.
I went with the Crane-built HIPPO lifter as it's a street car. Otherwise, the 5425s are plenty. They also have drop in Morels that use the trays. But I would not use trays on a solid lifter setup.
You don't need bushed lifters with 500lbs of spring pressure. If you had 800lbs, then yes, you have to run something like the Morel Ultimates or Jesel bushed stuff.
Thread Starter
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I would go to the Ultra Lite Pro rockers, swap to a milder cam lobe, and run the 1207X spring.
Or keep what you have, pull the heads, go with the Cam Motion LLR and their Crane-built variant or the Morel 5425s.
I went with the Crane-built HIPPO lifter as it's a street car. Otherwise, the 5425s are plenty. They also have drop in Morels that use the trays. But I would not use trays on a solid lifter setup.
You don't need bushed lifters with 500lbs of spring pressure. If you had 800lbs, then yes, you have to run something like the Morel Ultimates or Jesel bushed stuff.
Or keep what you have, pull the heads, go with the Cam Motion LLR and their Crane-built variant or the Morel 5425s.
I went with the Crane-built HIPPO lifter as it's a street car. Otherwise, the 5425s are plenty. They also have drop in Morels that use the trays. But I would not use trays on a solid lifter setup.
You don't need bushed lifters with 500lbs of spring pressure. If you had 800lbs, then yes, you have to run something like the Morel Ultimates or Jesel bushed stuff.
Not-s-Sponsor.com
Also what does it mean with solid lifters where it says there is a + .300 tall feature.
I won't need this?
This is for lifters for rpm over 8000rpm.
Last edited by KCS; Oct 2, 2019 at 09:43 AM. Reason: Non-Sponsor Link Removed