pushrod mesaurements?
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From: northeast ohio
Car: 2000 astro
Engine: 4.3
Transmission: A4
Axle/Gears: 7.5 with 3.42 gears
pushrod mesaurements?
i'm getting ready to put the top end on my 305, and i'm hitting a stumbling block.
i need to know if i have to use a special length pushrod for 1.6 rockers?
i'm using a set of ported 416 heads, and a 305 shortblock with a summit 1103 cam.
i need to know if i have to use a special length pushrod for 1.6 rockers?
i'm using a set of ported 416 heads, and a 305 shortblock with a summit 1103 cam.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: pushrod mesaurements?
Ideally you should use a pushrod checker to determine actual length required if change heads / rockers from stock
Thread Starter
Supreme Member
iTrader: (2)
Joined: Jun 2001
Posts: 1,878
Likes: 0
From: northeast ohio
Car: 2000 astro
Engine: 4.3
Transmission: A4
Axle/Gears: 7.5 with 3.42 gears
Re: pushrod mesaurements?
i figured i would have to do that. looks like i'll have to just put the engine together and find out!
thanks!
thanks!
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Joined: Oct 2011
Posts: 398
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From: British columbia, Canada
Car: 1986 Firebird
Engine: 5.0L V8
Transmission: T-5
Axle/Gears: 2.73
Re: pushrod mesaurements?
I'm hoping someone has a lunati/trickflow combo.... :P
Trick Flow® Super 23® 175 Cylinder Heads, Lunati 85345LUN (3/8th stud, 1.6%), Lunati 268/268 high efficiency cam...
Trick Flow® Super 23® 175 Cylinder Heads, Lunati 85345LUN (3/8th stud, 1.6%), Lunati 268/268 high efficiency cam...
Member
Joined: Oct 2011
Posts: 398
Likes: 0
From: British columbia, Canada
Car: 1986 Firebird
Engine: 5.0L V8
Transmission: T-5
Axle/Gears: 2.73
Re: pushrod mesaurements?
the lift on the cam is .457 and the max lift on the heads is .480 with 1.250 diameter springs. The lifters I'd be using are LUN-72330LUN (summit racing parts number)
Last edited by Trevmust; May 9, 2012 at 10:58 PM.
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