Discuss Glasspacks on V8 289 on AllFordMustangs.com, the place for Mustang enthusiasts.
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Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.
I run Cherry Bomb glass packs on mine 289 271hp, you can hear it 1/4 to 1/2 mi away if you put your foot in it, can't hear the radio if the motor is running, I love it. Good Luck.
Yeah, I hear ya; glasspacks get a bad rap because of their unique sound; you either hate it or love it, no in between.
I just pulled off a pair of Flowmaster knock offs that was put on by the previous owner because they sound too much like what everyone else has.
I like to try and set myself apart from what everyone else has but at times that can be hard when you own Mustangs.
I run Cherry Bomb glass packs on mine 289 271hp, you can hear it 1/4 to 1/2 mi away if you put your foot in it, can't hear the radio if the motor is running, I love it. Good Luck.
rex1965,
What size/model Cherry Bombs you run?
My radio is already crappy, however, a great sounding and loud ride is music to my ears.
I don't know what number mine are I just measured what dimensions I needed, like the inlet and outlet I.D. , and the length of the body and total length, went down to the local auto parts and got them, they are always more mellow when first installed. They are installed right in front of the tailpipes. Good Luck.
The previous owner installed glasspacks on my 67 with a 289. I dont mind the sound, but I think when I install my new exhaust in a couple of months, I will switch to some Flowmaster super 40s or 44s. Something deeper and fuller. That is unless someone has a better idea. Now that I have a more grown up motor, I want some more grown up exhaust. Cherry bombs remind me of 1985.
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- Scooter
1967 Mustang (Lucinda) - 302, ported GT40 heads, Crane Cam, Edelbrock Perfomer 289 intake, Edelbrock 1406 carb, T5 5 speed, Trac-loc 3.73 8.8" CSRP Disc Brakes, HEI distributor, Other goodies. - It's not leaking... It's sweating power -
I have 30 inch Cherry Bombs, H pipe and side exhaust. It is not really all that loud. The sound is a deep tone and not a "Ricer Whine" you hear on some imports.
Also running Tri Y headers.
Pictures and order info: Exhaust
Good Luck and BE Safe
Ron
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A code 66 coupe, Father~Son Restoration
289 4v, Roller Rockers, Electric fan
Performer & 650 Edelbrock
MSD ignition, Crane Cam
Tri Y into 2.25 Shelby side exhaust
T5 conversion, Hydraulic Clutch and 3.55 Trac Lok
CSRP SN95 Discs <=== CLICK on the "house" to visit my 66 website!
When i got my car 10 years ago from the orginal owner, it had the shortest little red glasspacks ide ever seen. That thing was so loud you couldnt even hear yourself think. To be honest i think it screwed with the backpressure too. As soon as i found oem type mufflers and put them on, it ran way better and smoother too. it also caused ALOT of extra rattling inside the car. Had to retighten alot of screws on the trim pieces. I mean if you like it loud then thats your ticket. But be warned, it will grab alot of attention, even unwanted kind from the fuzz.
I used to use the Thrush Glasspack mufflers back in the day when I was installing my own exhaust systems and they would just hang there before the rearend with no tailpipes. Used to get pulled over all the time by the cops for not having complete exhaust.
So you really don't want to know what I think about glasspack mufflers!
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1966 Mustang Coupe
Ford Racing 5.0 HO Motor(Crate)/B303 cam/1.7 RR
TFS TW Heads/Edelbrock Perfor RPM/Holley 650 DP
Mallory Dist/MSD Blaster/Holley Electric Fuel Pump
2.5" Exh H pipe/Flowmasters 40's/Dr.Gas Tailpipes
Lakewood T/A Bars/Aluminum Drive Shaft + loop
Auburn 3.55's/SSBC disc's/C-4 wTCI 2800 stall
Fiberglass hood/trunk/bumpers!(100% Sicilian)
I have 30 inch Cherry Bombs, H pipe and side exhaust. It is not really all that loud. The sound is a deep tone and not a "Ricer Whine" you hear on some imports.
Also running Tri Y headers.
Pictures and order info: Exhaust
Good Luck and BE Safe
Ron
Ron,
Thanks for the pics and links. I was not thinking of side exhausts, only glasspacks/mufflers and turn downs just before the rear axle. You got me thinking now.
Glasspacks on V8 289 
