Anyone got flow numbers for GM fastburn heads?
Thread Starter
Supreme Member
iTrader: (3)
Joined: Nov 2001
Posts: 2,428
Likes: 2
From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Anyone got flow numbers for GM fastburn heads?
Not looking for published or advertised numbers,
but if someone has flowed a set out of the box to
really check what they flow.
Thanks.
but if someone has flowed a set out of the box to
really check what they flow.
Thanks.
Thread Starter
Supreme Member
iTrader: (3)
Joined: Nov 2001
Posts: 2,428
Likes: 2
From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
okay got a couple replies on other boards so far...
flow numbers look kinda low... lower than advertised
and they have smaller valves that most performance heads.
So nobody likes these things?
flow numbers look kinda low... lower than advertised
and they have smaller valves that most performance heads.
So nobody likes these things?
Supreme Member
Joined: Jan 2002
Posts: 3,852
Likes: 1
From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
THey have big 210cc intake ports and they are kind of expensive, plus you will need a vortec intake, not really a good deal IMHO.
Thread
Thread Starter
Forum
Replies
Last Post
Mickeyruder
Engine/Drivetrain/Suspension Parts for Sale
3
Sep 2, 2015 02:45 PM
BlackphantomZ28
Engine/Drivetrain/Suspension Parts for Sale
0
Aug 22, 2015 01:00 PM
Dialed_In
Firebirds for Sale
2
Aug 20, 2015 01:45 PM
