305 Circle Track Heads
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Joined: Feb 2012
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305 Circle Track Heads
I have a set of 305 heads that were supposedly built for circle track racing..they were given to me and i have no idea what has been done to them, so with that being said is there anyway that i can figure out what has been done to them, or can any of you tell what has been done? I am looking to sell them so i need to know about them.
( I cant upload pictures because the site wont let me for some reason)
( I cant upload pictures because the site wont let me for some reason) 
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Joined: Sep 1999
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From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: 305 Circle Track Heads
The best/most accurate way would be to get them on a flow bench.
Supreme Member
iTrader: (29)
Joined: Sep 1999
Posts: 1,410
Likes: 2
From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: 305 Circle Track Heads
Any numbers on the heads?
Joined: Jul 2003
Posts: 10,532
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: 305 Circle Track Heads
Originally Posted by CadeFirebird
I have a set of 305 heads that were supposedly built for circle track racing..they were given to me and i have no idea what has been done to them, so with that being said is there anyway that i can figure out what has been done to them, or can any of you tell what has been done? I am looking to sell them so i need to know about them. ( I cant upload pictures because the site wont let me for some reason)
( I cant upload pictures because the site wont let me for some reason)
Joined: Dec 2004
Posts: 2,042
Likes: 18
From: Lincolnton, NC
Car: 88 IROC
Engine: 97 5.7 Vortec LT4 hotcam
Transmission: 700 r4
Axle/Gears: 3.73
Re: 305 Circle Track Heads
Also, do you have any idea what class they were "supposed" to be legal in?
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