Cam break-in ? with y-pipe off
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Joined: Mar 2004
Posts: 1,643
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Cam break-in ? with y-pipe off
I am going to get my engine going tomorrow.
It is a flat tappet cam in a 383. The engine block is already broke in(has about a 1000miles on it)
Now that I had to put in a different engine block, the oil pan is different and my y-pipe conficts with it now.
Would it be a problem if I was to start the car with out the y-pipe on?
Unfortunely, I am in the country and my exhaust guy doesn't live beside me.
Could I break the cam in with out the y-pipe?
It is a flat tappet cam in a 383. The engine block is already broke in(has about a 1000miles on it)
Now that I had to put in a different engine block, the oil pan is different and my y-pipe conficts with it now.
Would it be a problem if I was to start the car with out the y-pipe on?
Unfortunely, I am in the country and my exhaust guy doesn't live beside me.
Could I break the cam in with out the y-pipe?
Last edited by LB9GTA; Jun 20, 2007 at 12:10 AM.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Is it too late?
Yes, you can break the cam in without the y-pipe. There is slightly more risk, the greatest being not hearing something that isn't right and doing damage. But, if you are confident of the way it was assembled, roar away.
You have shorty headers, I presume?
Yes, you can break the cam in without the y-pipe. There is slightly more risk, the greatest being not hearing something that isn't right and doing damage. But, if you are confident of the way it was assembled, roar away.
You have shorty headers, I presume?
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From: Brighton, CO
Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
Re: Cam break-in ? with y-pipe off
There won't be any problem with it, have fun. 
Thread Starter
Joined: Mar 2004
Posts: 1,643
Likes: 50
From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: Cam break-in ? with y-pipe off
Had more fabbing to do with the intake, so we didn't start the car yet.
Yes, I have shorties.
Good point about the loud noise!
Yes, I have shorties.
Good point about the loud noise!
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Cam break-in ? with y-pipe off
I had to do that. Boy it's loud. 20-30 minutes and you're nearly insane from the noise... I used headphones and my head still hurt... All (every single one) of my neighbors came out to see WTF was going on...
You'll get soot on your oil pan most likely, no big deal.
You'll get soot on your oil pan most likely, no big deal.
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
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