3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

will a cam out of an lt1 fit my motor?

Thread Tools
 
Search this Thread
 
Old Apr 16, 2003 | 08:05 AM
  #1  
irocz8957's Avatar
Thread Starter
Registered User
 
Joined: Jan 2003
Posts: 346
From: Dayton OH
Question will a cam out of an lt1 fit my motor?

i have an 89 iroc-z 5.7 and i was wondering if i got a cam out of an lt1 engine, would it fit in my engine or would there be any problems??
Old Apr 16, 2003 | 08:18 AM
  #2  
Black6SpdTA's Avatar
Registered User
 
Joined: Jan 2003
Posts: 2,043
From: Mooresville, NC
itd fit but you have to do something with the dowel pin, check this out http://web.camaross.com/forums/showt...1+cam+in+my+87
Old Apr 16, 2003 | 08:22 AM
  #3  
Black6SpdTA's Avatar
Registered User
 
Joined: Jan 2003
Posts: 2,043
From: Mooresville, NC
guy on here StealthElephant went from 15.56 to 15.15 and up 3mph with the LT1 cam swap

edit: that was on his 305TPI
Old Apr 16, 2003 | 10:36 AM
  #4  
Makaveli's Avatar
Registered User
 
Joined: Aug 2001
Posts: 452
From: CT
using the tech data section of thirdgen.org, it lists 87 L98 350 TPI cam's specs to be: 202/207 .404/.415 114.5

the LT1 cams are awefully close to that, so i wouldnt think that the swap would really be worth it. i think the LT1 specs have a touch more lift, and 1 or 2 degrees more duration? although it would fit, i dont think its worth the trouble.

(edit) i didnt see you had an 89, the cam specs listed as: 207/213 .415/.430 117

so they differ a little, but different years of LT1s give you different cam specs too, but they are all in a general area, which is right where your TPI cam is if the specs are right..

Last edited by Makaveli; Apr 16, 2003 at 10:39 AM.
Old Apr 17, 2003 | 07:17 AM
  #5  
irocz8957's Avatar
Thread Starter
Registered User
 
Joined: Jan 2003
Posts: 346
From: Dayton OH
do you know what year had the most pwerful cam in it?
Old Apr 17, 2003 | 08:28 AM
  #6  
Makaveli's Avatar
Registered User
 
Joined: Aug 2001
Posts: 452
From: CT
http://216.121.161.76/files/LT1Cams.gif

the last 3 are aftermarket cams, and the rest of the stock cames have less duration than your stock cam... but they have more lift. but if your going for more lift, it would probably be better to get 1.6 roller rockers and use your stock cam, instead of going through the whole trouble of a cam swap, just to get more lift.

if you have 1.6 rockers on your stock cam that has .415 and .430 lift, it would make the lift .442/.458, which is really close to the 95 F body's lift with 1.5 rockers, and if you do a cam swap later to take advantage of ported heads and intake, you will be able to take advantage of 1.6 roller rockers that you bought already, plus the fact you can add a cam with more duration.

eh, thats my opinion, just a thought
Old Apr 17, 2003 | 12:20 PM
  #7  
mrr23's Avatar
Registered User
 
Joined: Nov 2001
Posts: 1,151
From: orlando,florida,usa
i did it. netted me a 13.86 changed to the zz4 cam and got a 13.689 with a broken #8 top ring.

www.fl-thirdgen.org/mrr23
Old Apr 17, 2003 | 12:44 PM
  #8  
irocz8957's Avatar
Thread Starter
Registered User
 
Joined: Jan 2003
Posts: 346
From: Dayton OH
what year car was the cam out of?
Old Apr 17, 2003 | 01:59 PM
  #9  
mrr23's Avatar
Registered User
 
Joined: Nov 2001
Posts: 1,151
From: orlando,florida,usa
don't know. got it new from www.vincihighperformance.com when they do motors for people, they have their own special grind to put in. but doesn't matter really, because all lt1 motors produced 300 hp some lt1 cams are out of impala ss cars that produced 260 hp.

but like i stated earlier, the zz4 cam produced approximately 20 more hp than the lt1 anyway.
Old Apr 17, 2003 | 02:27 PM
  #10  
Chuck!'s Avatar
Registered User
 
Joined: Aug 1999
Posts: 2,610
From: Cincinnati, OH
Just grind down the dowl pin, but I agree that the stock LT1 cam wont be much better. Im running it in a 305 and it wasnt big enough.
Old Apr 17, 2003 | 06:38 PM
  #11  
RedIrocZ-28's Avatar
Registered User
 
Joined: Nov 2000
Posts: 1,003
From: Grandville/ Grand Rapids, Michigan
Originally posted by Chuck!
Just grind down the dowl pin, but I agree that the stock LT1 cam wont be much better. Im running it in a 305 and it wasnt big enough.

Agreed.

Get an aftermarket one if you're gonna go through all the trouble of doing a swap.
Old Apr 18, 2003 | 07:53 AM
  #12  
irocz8957's Avatar
Thread Starter
Registered User
 
Joined: Jan 2003
Posts: 346
From: Dayton OH
thanks for the advice
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LeftoverChinese
Parts For Sale
24
Jan 14, 2024 03:03 PM
oldschool
Parts For Sale
16
Feb 9, 2016 09:21 PM
TheGreenZ28
Exhaust System
0
Dec 6, 2014 10:23 PM
BIGCOWL-IMP
Midwest
0
Nov 21, 2014 09:40 AM




All times are GMT -5. The time now is 04:32 PM.