What year throttle body to use
#1
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Car: 1971 Corvette
Engine: 6.0 LS1 L92 heads sheet metal etc.
Transmission: M21 4-speed
Axle/Gears: 3.36
What year throttle body to use
I am building an intake and I need to buy a throttle body for it. I need to use a lt1 TB for clearance reasons but I don't know what year to use. Any suggestions? Anybody have a used one for sale? Can I get away with a 52mm or do I need a 58?
#2
If you are using a twin you need to use a 58mm at the very least for that 406. I like to use the 112-506 holley as it has the smooth linkage, made out of billet, and uses tpi sensors.
Can you run a round one and just set it down?
Can you run a round one and just set it down?
Last edited by biggtime; 12-13-2004 at 09:32 PM.
#3
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Car: 1971 Corvette
Engine: 6.0 LS1 L92 heads sheet metal etc.
Transmission: M21 4-speed
Axle/Gears: 3.36
I want to use a round one, but my t stat housing is too tall. I'm using a Meziere billet one and I spent too much money on it last year to go back to an ugly stock one. I could fit a round TB if I made the plenum taller, but I don't want too much volume. I've got it figured at around 260 cubic inches now. It will also look funny if it is any taller.
I'm going to be using a Haltech standalone fuel box if that makes a difference.
I am not looking forward to spending that much cash on a TB, ouch.
edit: How is that HSR working for you? I wanted one, but my truck is bodydropped and it won't fit.
I'm going to be using a Haltech standalone fuel box if that makes a difference.
I am not looking forward to spending that much cash on a TB, ouch.
edit: How is that HSR working for you? I wanted one, but my truck is bodydropped and it won't fit.
#4
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Car: 1971 Corvette
Engine: 6.0 LS1 L92 heads sheet metal etc.
Transmission: M21 4-speed
Axle/Gears: 3.36
I like the round holley TBs. Can anyone get some mounting flange measurements for me?
I am planning on putting a 76gts on this next winter, so it would be easier to have the round hole for plumbing purposes also.
I am planning on putting a 76gts on this next winter, so it would be easier to have the round hole for plumbing purposes also.
#5
Originally posted by 406 S10 Man
I want to use a round one, but my t stat housing is too tall. I'm using a Meziere billet one and I spent too much money on it last year to go back to an ugly stock one. I could fit a round TB if I made the plenum taller, but I don't want too much volume. I've got it figured at around 260 cubic inches now. It will also look funny if it is any taller.
I'm going to be using a Haltech standalone fuel box if that makes a difference.
I am not looking forward to spending that much cash on a TB, ouch.
edit: How is that HSR working for you? I wanted one, but my truck is bodydropped and it won't fit.
I want to use a round one, but my t stat housing is too tall. I'm using a Meziere billet one and I spent too much money on it last year to go back to an ugly stock one. I could fit a round TB if I made the plenum taller, but I don't want too much volume. I've got it figured at around 260 cubic inches now. It will also look funny if it is any taller.
I'm going to be using a Haltech standalone fuel box if that makes a difference.
I am not looking forward to spending that much cash on a TB, ouch.
edit: How is that HSR working for you? I wanted one, but my truck is bodydropped and it won't fit.
I got rid of the stealth ram as my engine needs more airflow than it could support without major mods. Go to my gallery and click on the cutlass for pics of the new manifold i am doing.
I just bought a Holley 95mm round throttle body. Not for the inexpeirenced though as i needed to add my own IAC passages. It measures 3.5' square for the bolt holes. and a 4.750"x5" mounting plate. The actual ID is 3.740".
There are pics of this also.
#6
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Originally posted by biggtime
If you are using a twin you need to use a 58mm at the very least for that 406.
If you are using a twin you need to use a 58mm at the very least for that 406.
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#9
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Car: 1971 Corvette
Engine: 6.0 LS1 L92 heads sheet metal etc.
Transmission: M21 4-speed
Axle/Gears: 3.36
I may have to try a $25 stock one before I buy $500 billet one. I am going to run one more year NA to get the DFI tuned, so I would hate to lose HP to a stock TB.
I think a stock TB will hold 700 forced HP, but will it make 500 natural HP? I don't know. I guess vacuum readings at WOT will tell me.
I think a stock TB will hold 700 forced HP, but will it make 500 natural HP? I don't know. I guess vacuum readings at WOT will tell me.
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Car: 1971 Corvette
Engine: 6.0 LS1 L92 heads sheet metal etc.
Transmission: M21 4-speed
Axle/Gears: 3.36
I just bought a brand new Holley billet 58mm for a 93 LT1 on ebay for $280. I also bought a stock one from someone in the classifieds to get the sensors. I may do a back to back test, but I doubt it.
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