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10-20-2012, 07:35 AM
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#1 |
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It's alsways something.....
 
Join Date: Nov 2008
Location: Douglasville GA
Posts: 1,171
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Factory Tach with LS swap?
My 5.3 harness has a wire labeled "tach"- the instructions was to change the tach to '4 cylinder setting.' I am wondering how others have done this with the 5.3 swap. Mine is an 2003. Thanks
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1968 RS Camaro 'Vert Matching number 327 and M21 Muncie 1968 C10 Black with red interior and orig paint. 5.3 / 4l60e,3:73 POSI 17" Torq Thrusts 1968 CST 514 Red with black interior. Buddy Buckets, Factory A/C, PS, PB- 20" AR custom shop TT, 5.3 and 4l60e |
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10-20-2012, 08:47 AM
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#2 |
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Registered User
Join Date: May 2012
Location: Abingdon, Va
Posts: 21
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Re: Factory Tach with LS swap?
Digital Dakota makes a tach adapter for this when using a factory style tach. I have read that the settings in the ECM can be adjusted so the factory tach will read correct , but the last ls conversion I did, I never could get my programmer to get it done.
You can only change settings on an aftermarket digital style tach has been my experience. Posted via Mobile Device |
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12-29-2012, 07:16 AM
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#3 |
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It's alsways something.....
Join Date: Nov 2008
Location: Douglasville GA
Posts: 1,171
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Re: Factory Tach with LS swap?
Anyone tried the dakota digital product that chevysrumble mentioned? Thanks
__________________
1968 RS Camaro 'Vert Matching number 327 and M21 Muncie 1968 C10 Black with red interior and orig paint. 5.3 / 4l60e,3:73 POSI 17" Torq Thrusts 1968 CST 514 Red with black interior. Buddy Buckets, Factory A/C, PS, PB- 20" AR custom shop TT, 5.3 and 4l60e |
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12-29-2012, 10:38 AM
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#4 |
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the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: Factory Tach with LS swap?
I had waitformeperformance retune my computer to put out a signal for an 8 cylinder tach. Works perfect.
You may be able to find someone local that can reprogram your computer to do the same. Posted via Mobile Device
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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03-13-2013, 05:23 AM
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#5 |
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It's alsways something.....
Join Date: Nov 2008
Location: Douglasville GA
Posts: 1,171
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Re: Factory Tach with LS swap?
Anyone else able to chime in on this who has a 5.3 and factory tach operating?
__________________
1968 RS Camaro 'Vert Matching number 327 and M21 Muncie 1968 C10 Black with red interior and orig paint. 5.3 / 4l60e,3:73 POSI 17" Torq Thrusts 1968 CST 514 Red with black interior. Buddy Buckets, Factory A/C, PS, PB- 20" AR custom shop TT, 5.3 and 4l60e |
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03-16-2014, 02:24 PM
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#6 |
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Registered User
Join Date: Dec 2013
Location: Durango, CO
Posts: 827
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Re: Factory Tach with LS swap?
Chuck, what did you end up doing with your factory tach to make it work with your 5.3? Doing the same swap right now and that's about the only instrument I'm not certain on yet.
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1972 K10 Cheyenne Super | LWB, fleetside | 350/350/205 | KEEPER 1971 K10 Cheyenne | SWB, fleetside | LS Swap 5.3/4L60 | SOLD 1976 Trans Am | 400/4-spd | SOLD 1976 Trans Am | 455/4-spd | TOTALED 
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03-16-2014, 02:57 PM
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#7 |
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Registered User
Join Date: Jan 2013
Location: Los Angeles
Posts: 903
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Re: Factory Tach with LS swap?
I just went with the VhX it's A really nice up ... Worth the money
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1969 C20 CUSTOM "RUMBLEr" |
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04-12-2014, 03:25 PM
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#8 |
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It's alsways something.....
Join Date: Nov 2008
Location: Douglasville GA
Posts: 1,171
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Re: Factory Tach with LS swap?
Update to this thread: I asked the guy who does my programing on pcm to set for 8 cyl tach and it works fine
__________________
1968 RS Camaro 'Vert Matching number 327 and M21 Muncie 1968 C10 Black with red interior and orig paint. 5.3 / 4l60e,3:73 POSI 17" Torq Thrusts 1968 CST 514 Red with black interior. Buddy Buckets, Factory A/C, PS, PB- 20" AR custom shop TT, 5.3 and 4l60e |
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04-17-2014, 05:11 PM
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#9 |
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Registered User
Join Date: Apr 2014
Location: Delaware Ohio
Posts: 6
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Re: Factory Tach with LS swap?
mix up
Last edited by Toocool; 04-17-2014 at 05:15 PM. Reason: mix up |
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04-17-2014, 05:14 PM
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#10 | |
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Registered User
Join Date: Apr 2014
Location: Delaware Ohio
Posts: 6
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Re: Factory Tach with LS swap?
Quote:
New Guy I have a 1970 C10 ac 402 /700r4 live in Delaware Ohio Hi just asking this is a factory tack ? Thinking of putting 6.0, 4l80e Do you guys have part # for top rad hose! this is good forum for info ! |
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04-18-2014, 07:38 PM
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#11 | |
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the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: Factory Tach with LS swap?
Quote:
You may want to check out the ls swap subforum in the engine and drivetrain forum. I don't know the part number but the factory upper hose from a 99+ v8 silverado fits. It looks like hell so a lot of people swap radiators with both inlets on the pass side.
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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