Stock Pushrod Length

StreetRacin89Stang · 04-16-2001, 01:14 AM

Does anyone out there know the stock pushrod length on an 89 GT?? I need this information because I need to order a stock+.010 pushrod to stop some valvetrain noise on the #8 cylinder does anyone know where i can find/order one?? thanks.

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89 5.0 GT White w/Blue Racing Stripes
K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump

HAITHAM · 04-16-2001, 06:46 AM

Stock size is 6.25"

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Black 94 COBRA # 926/5009
TFS track heat heads (ported), Cobra intake (ported), 24# Injectors, 3/8" Phenolic spacer, E303 Cam, TFS 1.7 rr, BBK 1 5/8" headers, BBK 65mm TB, Pro-M 80mm, PIH kit, FMS 3.55 ratio, BBK 190 lph fuel pump, Paxton fpr, MSD'S, March Pulley's, Pro-5 tower power shifter, Autometer shift light (5600), Intellitronix Air/Fuel gauge, Eibach Sportline Springs, Tokico 5-way adjustable, Edelbrock Mufflers w\ 2.5" exhaust system, Clear Marker Lights, Aluminum Grill, Pfgoodrich

StreetRacin89Stang · 04-16-2001, 11:56 PM

I have replaced my lifters, pushrods, and rocker arms and i still have a valvetrain noise comming from the #8 cylinder area. I think the car has had valve jobs done in the past and therefore there could be gap in between the rocker arm and the pushrod/valvestem. To close this gap i am going to need the longer length pushrod. If the stock pushrod is 6.25 (summit lists otherwise) then a .010 longer (6.260) pushrod will make the gap close and not have too much negative gap, right??? Where can i get a pushrod like this??? Please Help!!

------------------
89 5.0 GT White w/Blue Racing Stripes
K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump

withamc · 04-17-2001, 12:20 AM

When I put the Crane 2031 cam in, my pushrods ended up being too short. Crane sells a 6.375" pushrod, which I bought and added shims under the roller rockers to get the proper preload. They'll also make custom lengths for you. I've still got some valve train noise, had a friend who races his 347 stroker listen to it and said it's not unusual.

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86 GT, GT40P heads, Crane 2031, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, Groundpounder subs and lower control arms, 277 RWHP. www.mustangworks.com/cgi-bin/moi-display.cgi?1537

StreetRacin89Stang · 04-17-2001, 04:12 PM

The Crane 2031 is very close to my E303, correct?? What shims and/or how many did you use. I understand that if there is too much pre-load then the valve will burn up so how many thousanths of preload is recommended or alloud? and if i just have this ticking from one valve would there be anything preventing me from using those pushrods and the shims for that valve alone?? Thanks

------------------
89 5.0 GT White w/Blue Racing Stripes
K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump

04-16-2001, 01:14 AM	#1
StreetRacin89Stang Registered Member Join Date: Dec 2000 Location: Bay Area, California Posts: 63	Stock Pushrod Length Does anyone out there know the stock pushrod length on an 89 GT?? I need this information because I need to order a stock+.010 pushrod to stop some valvetrain noise on the #8 cylinder does anyone know where i can find/order one?? thanks. ------------------ 89 5.0 GT White w/Blue Racing Stripes K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump

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04-16-2001, 06:46 AM	#2
HAITHAM Registered Member Join Date: Jun 2000 Location: Saudi Arabia Posts: 130	Stock size is 6.25" ------------------ Black 94 COBRA # 926/5009 TFS track heat heads (ported), Cobra intake (ported), 24# Injectors, 3/8" Phenolic spacer, E303 Cam, TFS 1.7 rr, BBK 1 5/8" headers, BBK 65mm TB, Pro-M 80mm, PIH kit, FMS 3.55 ratio, BBK 190 lph fuel pump, Paxton fpr, MSD'S, March Pulley's, Pro-5 tower power shifter, Autometer shift light (5600), Intellitronix Air/Fuel gauge, Eibach Sportline Springs, Tokico 5-way adjustable, Edelbrock Mufflers w\ 2.5" exhaust system, Clear Marker Lights, Aluminum Grill, Pfgoodrich

04-16-2001, 11:56 PM	#3
StreetRacin89Stang Registered Member Join Date: Dec 2000 Location: Bay Area, California Posts: 63	I have replaced my lifters, pushrods, and rocker arms and i still have a valvetrain noise comming from the #8 cylinder area. I think the car has had valve jobs done in the past and therefore there could be gap in between the rocker arm and the pushrod/valvestem. To close this gap i am going to need the longer length pushrod. If the stock pushrod is 6.25 (summit lists otherwise) then a .010 longer (6.260) pushrod will make the gap close and not have too much negative gap, right??? Where can i get a pushrod like this??? Please Help!! ------------------ 89 5.0 GT White w/Blue Racing Stripes K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump

04-17-2001, 12:20 AM	#4
withamc Registered Member Join Date: Aug 2000 Location: Thousand Oaks, CA Posts: 396	When I put the Crane 2031 cam in, my pushrods ended up being too short. Crane sells a 6.375" pushrod, which I bought and added shims under the roller rockers to get the proper preload. They'll also make custom lengths for you. I've still got some valve train noise, had a friend who races his 347 stroker listen to it and said it's not unusual. ------------------ 86 GT, GT40P heads, Crane 2031, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, Groundpounder subs and lower control arms, 277 RWHP. www.mustangworks.com/cgi-bin/moi-display.cgi?1537

04-17-2001, 04:12 PM	#5
StreetRacin89Stang Registered Member Join Date: Dec 2000 Location: Bay Area, California Posts: 63	The Crane 2031 is very close to my E303, correct?? What shims and/or how many did you use. I understand that if there is too much pre-load then the valve will burn up so how many thousanths of preload is recommended or alloud? and if i just have this ticking from one valve would there be anything preventing me from using those pushrods and the shims for that valve alone?? Thanks ------------------ 89 5.0 GT White w/Blue Racing Stripes K&N, 73mm Mass Air, Ported and Polished Stock Heads, E303 Cam, MAC equal Length Headers, Off Road H-Pipe, Borla Mufflers, Sway Bars, Strut Tower Brace, Subframe Connectors, Eibach Springs, Koni Adjustables/Reds, Pony 5 Stars, 1000 Watt JL Audio System, No P/S , No Smog Pump