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09-10-2011, 10:16 AM
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#1 |
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Registered User
Join Date: Feb 2004
Location: New Britain, CT
Posts: 70
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1994 engine
I have a 1994 5.7 tbi in my truck. can you tell what kind of cam is in there with out taking it apart? i'm looking at ordering a new (bigger cam) and wanted to know if my engine is a roller cam or flat tappet cam.
thanks for any info. thanh |
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09-10-2011, 03:57 PM
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#2 |
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error 404
Join Date: Oct 2010
Location: soldotna alaska
Posts: 1,252
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Re: 1994 engine
I'm assuming stock correct? i think its flat i dont think they changed to roller until 95 or 96
__________________
 89 Chevy swb 350 "SJ" DD turned parts truck. SOLD 90 Chevy ext cab loooongbed. "storm trooper" Rust In Peace. 06 Kia sorento wife's car 06 charger srt8 "lucifer" my toy '12 Kia optima |
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09-11-2011, 01:53 AM
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#3 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: 1994 engine
^ correct, but you may have a block that's machined for a roller. I'd run one if the block is machined for it.
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09-11-2011, 03:56 PM
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#4 |
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Registered User
Join Date: Feb 2004
Location: New Britain, CT
Posts: 70
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Re: 1994 engine
thanks for the info.
next question. how do you tell if it is machine for roller lifters? in my big blocks- they make no difference. thanks |
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09-12-2011, 07:23 AM
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#5 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: 1994 engine
Apparently you don't have any Gen 6 big blocks...
Lifter bores are taller and machined flat across the top. There will be 3 bosses in the middle of the lifter valley, about 1" tall. These hold the spider/lifter retainer in place. Same with a Gen 6 454 ('96 - '99), they're all I build any more. |
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09-12-2011, 12:41 PM
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#6 |
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One day...
 
Join Date: Apr 2008
Location: Tuttle, Ok
Posts: 9,243
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Re: 1994 engine
Hard to tell but i converted mine to roller.
 
Last edited by scotts62; 09-12-2011 at 12:43 PM. Reason: added pic |
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09-12-2011, 01:17 PM
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#7 | |
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Registered User
Join Date: Feb 2004
Location: New Britain, CT
Posts: 70
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Re: 1994 engine
Quote:
did you use a bar type lifters or did you get the retainer type lifters? thanh |
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09-13-2011, 10:15 AM
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#8 |
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One day...
Join Date: Apr 2008
Location: Tuttle, Ok
Posts: 9,243
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Re: 1994 engine
Just the stock set up with the retainers and the spider holding the retainers in place.
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