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Install Chev crate motor in 97 k1500  
chevyjay
New User | Posts: 3 | Joined: 08/08
Posted: 08/18/08
05:41 PM

I bought a Chevy crate motor (the 350 HO deluxe) and was hoping to put it in my 97 Chev silverado K1500.  The crate motor came with a carb, hyd flat tappet cam, vortec heads.  My question is can I just swap my fuel injection system on to this motor (intake's, sensors, injectors, etc...).  They both have the vortec heads.  But will the cam work with the computer?  I assume the 97 has a roller cam and lifters.  The crate motor has a hyd flat tappet.  Any thoughts?  


 
SnoMan
Addict | Posts: 5215 | Joined: 05/04
Posted: 08/18/08
06:52 PM

It is not the cam type but rather its duration/profile that is the issue. FI can be fussy about profiles. I would suggest you find out what cam is it before you go any further.  


 
wookie2395
New User | Posts: 38 | Joined: 02/08
Posted: 08/18/08
07:55 PM

friend of mine swap out his tired 350 in hish 1500 (a 94) with a jasper that had a little bit more lift and it threw his ECU through a loop. Became hard to start and ran horrible. If your gonna run a carb id ditch the entire computer control system. Unless you want to stick with the fuel injection than id go after market with something you could adjust  


 
SnoMan
Addict | Posts: 5215 | Joined: 05/04
Posted: 08/19/08
05:49 AM

It would be easier and cheaper in long run to swap out cam if you want you use factory FI. It would run better too and be easier to fix than aftermarket setup. OBD2 is nice to have and I would not scrape it.  


 
mudb8-.
Moderator | Posts: 1354 | Joined: 11/07
Posted: 08/19/08
09:22 AM

if the crate engine has gen.1 heads (perimeter bolts)
the EFI intake won't bolt on it...  


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The rally will be on Wednesday May 7th from 4 to 9 pm Eastern Standard Time.
Be there and post up POSITIVE COMMENTS!!

 
chevyjay
New User | Posts: 3 | Joined: 08/08
Posted: 08/19/08
02:21 PM

Snoman I ck'd on the cam it is a dual pattern cam with .435I and .460E lift duration @.050 212I and 222E . I have manuals for my 97 that i bought direct from GM, I could look up the cam profile for the stock and compare.  Close enough should work or should it be right on.  Crate motor compression is 9.1:1 and 1.5 rockers.  Cast iron 64cc vortec heads 1.94 and 1.50 for valves.  Sure would like this to work!  


 
mudb8-.
Moderator | Posts: 1354 | Joined: 11/07
Posted: 08/19/08
03:45 PM

thats more a mid range cam,
just a bit large for bottom end torque. they are strong once ya get em movin.

190-208 @.050 is better for low end and still good for 300hp. the lobe center of the cam also plays a role in the torque range.  


Help save TELLICO...VIRTUAL RALLY for Tellico...

http://www.pirate4x4.com/forum/showthread.php?p=8149649#post8149649

The rally will be on Wednesday May 7th from 4 to 9 pm Eastern Standard Time.
Be there and post up POSITIVE COMMENTS!!

 
SnoMan
Addict | Posts: 5215 | Joined: 05/04
Posted: 08/20/08
04:50 AM

I agree, cam is a bit too warm for use with FI. I know it is a new motor but I would suggest you recam it before you use it if you pan to use FI. A Competion Cam in a 252 grind would play nicely here with good low and midrange torque and should pull well to about 5000 or a bit more with VorTec heads too.  


 
chevyjay
New User | Posts: 3 | Joined: 08/08
Posted: 08/21/08
06:57 AM

Here is a cam I found on summit it says computer compatiable, but jes a hell of alot more lift and duration than what I have.  Or am I just reading the numbers wrong?  Part # CCA-CL08-413-8 .474 I & E lift. Duration @.050 220I 224E. Lobe Sep 111. on summitracing.com.   What do you mean by a cam with a 252 grind? Duration?

http://store.summitracing.com/partdetail.asp?CP=1&part=CCA-CL08-413-8&N=700 0&Ntt=CCA~CL08~413~8 or CCA~K08~413~8&Ntk=&rsview=sku&Ns=P_SRE_DisplayPrice|0  


 
SnoMan
Addict | Posts: 5215 | Joined: 05/04
Posted: 08/21/08
07:41 AM

That is a lot of duration for FI and it will be soft on low range torque and efficiency which means MPG will suffer too. On the CC cam, 252H is the name of the cam. It has a 110 degree center line on lobes at .050 lift (which is what you want)and a .050 duration of 206 on intake and exhaust which provides clean response and great low and mid range torque and plays well with FI. Too much cam is never good. I have run it and a 260H in years past. The 260 is a good cam but does not really pull as well as 252 below 2000 RPM. If you have a automatic and decent axle gears you could try it but if it is a stick, stick with 252H. Also CC pioneered asymmetrical lobes on cam (opens and closes valves quicker) which give more effective breathing within their duration than stock type profiles so you have more power with great response and good fuel efficiency too due to less overlap vs a conventional profile.  

First link is for 252H
Click Here


This next link is for 260H
Click Here  


 
NOW
New User | Posts: 10 | Joined: 09/08
Posted: 09/28/08
01:18 AM

I did it and swore i would pay some one to do it  


 
stempak stempak
New User | Posts: 39 | Joined: 10/08
Posted: 11/15/08
07:45 PM

It sounds as if you have to recalibrate the computer, by a cam kit for this computer consisting of a chip,injector's and a cam, or etc. A chip and cam or just a factory cam. That will work with it's stock perimaters, Or you block the engine side of the computer and run it carbed depending on your emission laws?  


 
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