how big of a motor ls based will i need
how big of a motor ls based will i need i was wandering if anybody has built any ls based motors like what im wanting to do and how big cubic inch wise and money wise will it cost. trying to decide whether to go ls based and fuel injected or big block carbed efi would be nice though. what im wanting to do is run ihra hot rod 10.90 index but u need a good 9.00 or so car to throttle stop it back to 10.90 i got a 94 t/a with 02 frontend its backhalfed from the firewall back with chromolly with funny car cage 4 link suspension with a 33/10.5w tire and its got a powerglide with a pro transbrake if i stay ls fuel injected can somebody let me know what i might need to build to run between 5.90 to 6.20 on motor oh yea i dont know the weight but anything not needed is being removed 
TECH Regular
Joined: Dec 2005
Posts: 437
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From: Northern Kentucky
I wouldn't worry about running 9.0's... 9.60's or 9.70's is good enough that you won't be running people down too hard and you won't be getting chased too hard. My dads won his fair share of Hot Rod rounds running 6.1X's.
Many of the better Hot Rod racers I know run 10.50's and up... Personally I wouldn't want EFI for running the throttle stop, wouldn't be easy to rig up. Much cheaper to just plop a 468 or something in there, granted not as cool.
Many of the better Hot Rod racers I know run 10.50's and up... Personally I wouldn't want EFI for running the throttle stop, wouldn't be easy to rig up. Much cheaper to just plop a 468 or something in there, granted not as cool.
My experience tells me that LSx engines are going to cost about double that of an old school setup.
My LS block alone cost ~$2400.
Intake and throttle body ~$1100
Jessel Mohawk rocker arms ~$1400
see how it can get more expensive? It seems everything for an LS costs way more, maybe because of a smaller market? I don't know, but going old school should cost alot less.
My LS block alone cost ~$2400.
Intake and throttle body ~$1100
Jessel Mohawk rocker arms ~$1400
see how it can get more expensive? It seems everything for an LS costs way more, maybe because of a smaller market? I don't know, but going old school should cost alot less.
Last edited by WMSuperSport; Feb 5, 2007 at 11:25 AM.
TECH Regular
Joined: Dec 2005
Posts: 437
Likes: 0
From: Northern Kentucky
Originally Posted by WMSuperSport
My experience tells me that LSx engines are going to cost about double that of an old school setup.
My LS block alone cost ~$2400.
Intake and throttle body ~$1100
Jessel Mohawk rocker arms ~$1400
see how it can get more expensive? It seems everything for an LS costs way more, maybe because of a smaller market? I don't know, but going old school should cost alot less.
My LS block alone cost ~$2400.
Intake and throttle body ~$1100
Jessel Mohawk rocker arms ~$1400
see how it can get more expensive? It seems everything for an LS costs way more, maybe because of a smaller market? I don't know, but going old school should cost alot less.
I love the technology behind LS1's but just don't have the cash to go fast with them... That's the only thing that's stopping me.
Me and my dad run Hot Rod and we're looking at spending $1400+ in entry fees alone next year plus gas... It's not easy on the wallet if you don't win.
