Aftermarket Tach in Stock Hole??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mark25 · 04-08-2002, 10:26 PM

want to install a higher RPM tach in dash as i want to be able to get reading above 5K. i know a '70-'81 camaro tach will go right in, but was wanting to know if there was an aftermarket one that could be installed behind the lens WITHOUT CUTTING A HOLE in the lens, possibly with a shift light. anybody????? pics?????

Longhorn Man · 04-08-2002, 10:36 PM

It can be done, but you'll still have to cut a hole in the metal behinde the lens. Plus, now you'll be looking through 2 layers of scratched plastic.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

Blue_71 · 04-08-2002, 10:41 PM

i did this too my dash, and ive only got one lens. the original.. i took apart the tach to do it. if you want info ill ind out all the tach specs and everythign and make some instructions

Blue_71 · 04-08-2002, 10:44 PM

forogt the pic

72chevyLWB · 04-09-2002, 11:55 AM

I have one for sale if your interested.

------------------
72 Chevy C/10
87 Chevy Silverado 4X4
www.geocities.com/chevylwb/chevylwb.html
Aberdeen South Dakota

LMN8R · 04-09-2002, 12:05 PM

Blue_71, I would be interested in the specifics of this swap. I've got the info on the camaro swap, but would like your info also, then see which I want to go with.

**1970 CST Short Wide** · 04-09-2002, 12:21 PM

Blue_71
What are you useing to post pictures? I cant seem to post anything with that ease

Sorry about topic change

------------------
Steve's 70 CST
Soon to have a BB

texnician01 · 04-09-2002, 03:56 PM

Blue_71 I would be really interested in the instructons for that mod and what kind of tach it was. that looks great!!!

HvyChevy454 · 04-09-2002, 04:01 PM

this is a SunPro Tach that you can get at the Discount Auto Parts, i just had to take the lense off it and use the stock lense on the truck.

------------------
Lutz, Fl
My Team Website
The Heavy Chevy Website
------------------

72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi
91 454 Edel Intake 850 cfm carb Comp Cam 268/.500 Hedman Headers Dual 3'' Exhaust
71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works...
Put it to the floor...

**1971Stepside** · 04-09-2002, 04:08 PM

HvyChvy,

Your picture puzzled me. Why is your gearshift indicator showing Park on the right side? What am I missing?

------------------
2001 GMC 2500HD Crew Cab Duramax, Allison, 4WD, Love it

1971 Chevrolet 1/2 ton 2WD Short/Step Side. In process of frame off restoration

RipMeyer · 04-09-2002, 08:31 PM

[img]http://communities.msn.com/_Secure/0LwAAANQOTUQz1mh8VFTQi106YEBoJh8pOgHAxn*sDE0522!SC90OCGYATe!KLY7Fl*A7X9XMOZo/MVC-242F.JPG[/img]

Andrew68c10 · 04-09-2002, 09:27 PM

And it appears Rip was in gear when he took his picture. Don't let your foot off the brake!

REPO1 · 04-09-2002, 09:43 PM

What size of tachs are you guys using in there? What size fits best?

------------------
Sylvan Lake, Alberta, Canada

1970 Chevy C20 Custom Camper
402BB Turbo 400 trans.
A/C, P/S, manual brakes.
75,800 Original Miles!!
'71 Camaro SS 402/T400 resto
'97 Z28 -- Runs 11.5 @ 118mph.

Longhorn Man · 04-10-2002, 12:03 AM

LOL, I noticed the gear indicater too!

mark25 · 04-10-2002, 12:10 AM

tach size would be great to know. any mods needed to metal case to make it fit????

Blue_71 · 04-10-2002, 12:19 AM

LMN8R---will type it up and email to you
1970 CST Short Wide--- http://www.picturetrail.com when you get the properties for the picture, it will have a .ptp on it. erase that and put .jpg and you can post.
Texnician01---will email you too
Repo1--- not sure about the other guys but i used a 3 3/4" which was a little too small, 4" would have been better
mark25--- i completly did away with the metal case

[This message has been edited by Blue_71 (edited April 10, 2002).]

JW · 04-17-2002, 06:31 PM

We have used both the Camaro and Sun Super II tachs. Any 3 3/4" tach will fit.

The Camaro tach fits nicely into the dash metal housing. Have to cut two holes, the front metal cover (round) and the rear metal cover (to match the Camaro tach). The trick is to get the tach centered in these two metal covers. The stock plactic, printed circuit can be used without any modifications. To wire the Camaro tach, (-) black wire to a ground (screw) location on the rear metal cover and printed circuit, (+) red wire to ign normally-on or to the fuse panel - unfused (use a 10amp inline fuse), green wire to coil or HEI - tach. The Camaro tach has no provision for a light.

The Sun tach requires, considerable more installation.

------------------
72 Cheyenne Super, Fleetside, Shortbed,
Original Owner
Northern Calif

JW · 04-17-2002, 07:47 PM

Tried to upload a pic, use below link
http://communities.msn.com/c8nriaul5...Pics/DASH2.JPG
------------------
72 Cheyenne Super, Fleetside, Shortbed,
Original Owner
Northern Calif

[This message has been edited by JW (edited April 17, 2002).]

HvyChevy454 · 04-17-2002, 09:00 PM

the shift indicator is just sitting on the column. the pic was right after i finished putting everything in.

------------------
Lutz, Fl
My Team Website
The Heavy Chevy Website
------------------

72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi
91 454 Edel Intake 850 cfm carb Comp Cam 268/.500 Hedman Headers Dual 3'' Exhaust
71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works...
Put it to the floor...

B-Town69 · 04-18-2002, 01:15 PM

Hey HvyChevy454 what is the exact color of your orange truck i really like that color. I am trying to find the right color to paint my truck.

------------------
1969 Chevy Black LWB

04-08-2002, 10:26 PM	#1
mark25 Registered User Join Date: Feb 2000 Location: Vassar,Ks 66543 Posts: 375	Aftermarket Tach in Stock Hole??? want to install a higher RPM tach in dash as i want to be able to get reading above 5K. i know a '70-'81 camaro tach will go right in, but was wanting to know if there was an aftermarket one that could be installed behind the lens WITHOUT CUTTING A HOLE in the lens, possibly with a shift light. anybody????? pics????? __________________ '72 C-10 Cheyenne Super, 402/TH400, Bucket Seats, tilt, tach, AM/FM & shoulder harnesses and a ground up restoration

04-09-2002, 11:55 AM	#5
72chevyLWB Got 20's???? Join Date: Oct 2001 Location: Aberdeen SD Posts: 1,451	I have one for sale if your interested. ------------------ 72 Chevy C/10 87 Chevy Silverado 4X4 www.geocities.com/chevylwb/chevylwb.html Aberdeen South Dakota __________________ 99 Silverado Ex-Cab 2wd, Bagged&WhippleCharged 02 Sierra Ex-Cab 4wd 2500 HD The 72 went down the road.

04-09-2002, 12:05 PM	#6
LMN8R Registered User Join Date: Feb 2002 Location: Crawfordsville, IN USA Posts: 84	Blue_71, I would be interested in the specifics of this swap. I've got the info on the camaro swap, but would like your info also, then see which I want to go with. __________________ 1986 Silverado CrewCab Dually 454 auto.

04-09-2002, 12:21 PM	#7
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,185	Blue_71 What are you useing to post pictures? I cant seem to post anything with that ease Sorry about topic change ------------------ Steve's 70 CST Soon to have a BB __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

04-09-2002, 03:56 PM	#8
texnician01 Senior Member Join Date: Mar 2002 Location: 12 Miles South of Des Moines, Iowa Posts: 359	Blue_71 I would be really interested in the instructons for that mod and what kind of tach it was. that looks great!!! __________________ 69 C-10, 340HP 327 55 chevy 4 door 150 47 Willys CJ-2A 05 Harley Night Train 06 1200 Sportster (Wife's bike) 70 Honda CL350 OIF2 & OIF7 Veteran Nathan & Tiffany

04-08-2002, 10:36 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	It can be done, but you'll still have to cut a hole in the metal behinde the lens. Plus, now you'll be looking through 2 layers of scratched plastic. ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio

04-09-2002, 04:01 PM	#9
HvyChevy454 Slowly getting CRSS... Join Date: Jul 2001 Location: Lutz, Florida Posts: 656	this is a SunPro Tach that you can get at the Discount Auto Parts, i just had to take the lense off it and use the stock lense on the truck. ------------------ Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Intake 850 cfm carb Comp Cam 268/.500 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Put it to the floor... __________________ -Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Speak Softly and Carry A Big Block... There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti

04-09-2002, 04:08 PM	#10
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	HvyChvy, Your picture puzzled me. Why is your gearshift indicator showing Park on the right side? What am I missing? ------------------ 2001 GMC 2500HD Crew Cab Duramax, Allison, 4WD, Love it 1971 Chevrolet 1/2 ton 2WD Short/Step Side. In process of frame off restoration __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

04-09-2002, 08:31 PM	#11
RipMeyer Registered User Join Date: Oct 2001 Location: Southern New Mexico Posts: 649	[img]http://communities.msn.com/_Secure/0LwAAANQOTUQz1mh8VFTQi106YEBoJh8pOgHAxnsDE0522!SC90OCGYATe!KLY7FlA7X9XMOZo/MVC-242F.JPG[/img]

04-09-2002, 09:27 PM	#12
Andrew68c10 Registered User Join Date: Sep 2000 Location: Paso Robles, CA Posts: 178	And it appears Rip was in gear when he took his picture. Don't let your foot off the brake! __________________ 1968 Chevy C10 Longbed Fleetside

04-09-2002, 09:43 PM	#13
REPO1 Shortbox wanna-be. Join Date: Mar 2002 Location: Fort St.John, British Columbia, Canada Posts: 773	What size of tachs are you guys using in there? What size fits best? ------------------ Sylvan Lake, Alberta, Canada 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. A/C, P/S, manual brakes. 75,800 Original Miles!! '71 Camaro SS 402/T400 resto '97 Z28 -- Runs 11.5 @ 118mph. __________________ 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH)

04-10-2002, 12:03 AM	#14
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	LOL, I noticed the gear indicater too!

04-10-2002, 12:10 AM	#15
mark25 Registered User Join Date: Feb 2000 Location: Vassar,Ks 66543 Posts: 375	tach size would be great to know. any mods needed to metal case to make it fit???? __________________ '72 C-10 Cheyenne Super, 402/TH400, Bucket Seats, tilt, tach, AM/FM & shoulder harnesses and a ground up restoration

04-17-2002, 06:31 PM	#17
JW Registered User Join Date: Apr 2000 Location: Carmichael, Ca Posts: 67	We have used both the Camaro and Sun Super II tachs. Any 3 3/4" tach will fit. The Camaro tach fits nicely into the dash metal housing. Have to cut two holes, the front metal cover (round) and the rear metal cover (to match the Camaro tach). The trick is to get the tach centered in these two metal covers. The stock plactic, printed circuit can be used without any modifications. To wire the Camaro tach, (-) black wire to a ground (screw) location on the rear metal cover and printed circuit, (+) red wire to ign normally-on or to the fuse panel - unfused (use a 10amp inline fuse), green wire to coil or HEI - tach. The Camaro tach has no provision for a light. The Sun tach requires, considerable more installation. ------------------ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner Northern Calif __________________ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner, Special Ordered 350ci/340hp, Auto Trans, 3:70 Posi, Tow Package Northern Calif

04-17-2002, 07:47 PM	#18
JW Registered User Join Date: Apr 2000 Location: Carmichael, Ca Posts: 67	Tried to upload a pic, use below link http://communities.msn.com/c8nriaul5...Pics/DASH2.JPG ------------------ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner Northern Calif [This message has been edited by JW (edited April 17, 2002).] __________________ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner, Special Ordered 350ci/340hp, Auto Trans, 3:70 Posi, Tow Package Northern Calif



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04-17-2002, 09:00 PM	#19
HvyChevy454 Slowly getting CRSS... Join Date: Jul 2001 Location: Lutz, Florida Posts: 656	the shift indicator is just sitting on the column. the pic was right after i finished putting everything in. ------------------ Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Intake 850 cfm carb Comp Cam 268/.500 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Put it to the floor... __________________ -Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Speak Softly and Carry A Big Block... There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti

04-18-2002, 01:15 PM	#20
B-Town69 Registered User Join Date: Apr 2002 Location: Bullard, Texas, USA Posts: 13	Hey HvyChevy454 what is the exact color of your orange truck i really like that color. I am trying to find the right color to paint my truck. ------------------ 1969 Chevy Black LWB __________________ 1969 Chevy Black LWB

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