head question:
Thread Starter
Pro
Joined: Jun 2002
Posts: 662
Likes: 2
From: chatam nj
head question:
I'm looking tack onto my L98 the mini ram, 52mm t/b, & HOTCAM. which head should I go with? my mods are in my signature. I'm looking for 425+ hp at the crank. I'm not going to do the bottom end(yet). Not looking to do N.O.S. or Supercharger either.
I was just wondering what the Forum Riders have...
PLEASE help(can't sleep)
:chevy :chevy :chevy
I was just wondering what the Forum Riders have...
PLEASE help(can't sleep)
:chevy :chevy :chevy
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: head question: (BluePastU)
If we assume a 15% drivetrain loss than you are basically looking at 360 at the wheels. This is obtainable on an LT1 with the hot cam, so I would assume it would be on an L98, mini ram combo.
LCVette did it on his home ported heads with his LT1. I hope to get it on my CNC ported LT1 heads. The thing is that us poor LT1 people don't have many aftermarket head choices. You should have plenty. Just do your reasearch on SBC heads and find some that flow really well and you'll be there. Remember peak flow numbers mean nothing. A head advertised at 350 CFM at .700 lift will do you NO good with the Hot Cam which only reaches .525 lift. See if you can find flow numbers across the board and see what gives you the most area under the curve for the usuable area of your cam.
Sorry I can't be more specific, but I just don't know what all the L98 options are.
LCVette did it on his home ported heads with his LT1. I hope to get it on my CNC ported LT1 heads. The thing is that us poor LT1 people don't have many aftermarket head choices. You should have plenty. Just do your reasearch on SBC heads and find some that flow really well and you'll be there. Remember peak flow numbers mean nothing. A head advertised at 350 CFM at .700 lift will do you NO good with the Hot Cam which only reaches .525 lift. See if you can find flow numbers across the board and see what gives you the most area under the curve for the usuable area of your cam.
Sorry I can't be more specific, but I just don't know what all the L98 options are.
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: head question: (BluePastU)
I would look at some AFR 190 heads, and a ZZ-9 or ZZ-9X cam or a cam with similar specs.
TFS, and Brodix 1 are also good heads.
TFS, and Brodix 1 are also good heads.
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: head question: (tntcorvette)
he has an 88, so he does have D-ports, unported theyll flow enough for 350hp, ported should be a little over 400
Instructor
Joined: Aug 2002
Posts: 109
Likes: 0
From: Charleston SC
Re: head question: (BluePastU)
The GM Fastburn heads use a raised intake runner design and are not compatible with standard intake. You would need to use a Vortec style intake, or I believe TPIS has a mini ram that will work with the fast burn heads. One thing you should consider is intake port volume, which should probably be in the 190-195 cc range to maintain flow velocity due to the rpm range of a street motor. As mentioned, AFR and TFS make very good flowing heads in this size.
Pro
Joined: Jul 2000
Posts: 508
Likes: 0
From: Vancouver WA
Re: head question: (vader86)
I would look at some AFR 190 heads, and a ZZ-9
.
.
Thread Starter
Pro
Joined: Jun 2002
Posts: 662
Likes: 2
From: chatam nj
Re: head question: (tntcorvette)
thanks riders,
It looks like I will go with the 195's(just incase I do deside to use a supercharger in the future). Miniram, 52mm t/b, and hotcam. going to step up to the 24# injectors(new timing chain, water pump, etc... I wouldn't want to have to re-open the motor once it's done).
Going to do dyno for aftermath.
thanks
:cheers:
:cheers:
:cheers:
It looks like I will go with the 195's(just incase I do deside to use a supercharger in the future). Miniram, 52mm t/b, and hotcam. going to step up to the 24# injectors(new timing chain, water pump, etc... I wouldn't want to have to re-open the motor once it's done).
Going to do dyno for aftermath.
thanks
:cheers:
:cheers:
:cheers:
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