'87 350 TPI cam?
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
'87 350 TPI cam?
I was under the understanding that the 87 350 TPIs got the "peanut cam", but some recent searches are saying no, some are saying yes.
I'm thinking of swapping out mine, if mine IS the "peanut cam", so I'm looking to find out just how "bad" my 87 cam is, before I look into getting a new cam.
Yes, cam + heads +roller rockers, etc. would be better to do all together. But my budget won't allow that & I like to see the improvements (if any) at each step.
Anybody know the cam specs of each year? I'm thinking a LT1/HOT cam to swap in.
I'm thinking of swapping out mine, if mine IS the "peanut cam", so I'm looking to find out just how "bad" my 87 cam is, before I look into getting a new cam.
Yes, cam + heads +roller rockers, etc. would be better to do all together. But my budget won't allow that & I like to see the improvements (if any) at each step.
Anybody know the cam specs of each year? I'm thinking a LT1/HOT cam to swap in.
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: '87 350 TPI cam?
'87 L98 202/206 403 / 415
Even going to a stock LT1 cam is a improvement on account of the increased lift .205/ 207 450/ 460ish
The hot cam (218 / 226 .525 w/ 1.6 rockers ) may be a mismatch without intake mods because it will run revs the TPI intake won't support.Note you need the 1.6 rockers to get that lift , without it is only .492
Something similar to the popular TPIS ZZ9. 212/226 .483/.520 might be a better choice.
And if you want to be really cheap I have had great success with the ZZ4 cam 208/221 474 /510 in L98's Can be found as take out cams from ZZ4 crate engines under $140, I paid $85 for mine
Even going to a stock LT1 cam is a improvement on account of the increased lift .205/ 207 450/ 460ish
The hot cam (218 / 226 .525 w/ 1.6 rockers ) may be a mismatch without intake mods because it will run revs the TPI intake won't support.Note you need the 1.6 rockers to get that lift , without it is only .492
Something similar to the popular TPIS ZZ9. 212/226 .483/.520 might be a better choice.
And if you want to be really cheap I have had great success with the ZZ4 cam 208/221 474 /510 in L98's Can be found as take out cams from ZZ4 crate engines under $140, I paid $85 for mine
Last edited by vetteoz; Jan 19, 2010 at 04:45 PM.
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: '87 350 TPI cam?
wow, that is a sad 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
Junior Member
Joined: Nov 2008
Posts: 94
Likes: 0
From: Ontario, Canada
Car: 1985 Z28
Re: '87 350 TPI cam?
I have an '87 350 with the small cam... its not really that bad in combination with the intake. I use my car for daily driving and with this cam its quite a quick car!
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Joined: Jun 2006
Posts: 2,199
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From: West-Central
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
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