question on mac headers

Import Slayer · 03-30-2002, 06:59 AM

Would MAC 1 5/8 (unequal) headers be too big for a basically stock 5.0? i have an off road H pipe, glasspacks, and a K&N filter as the only mods so far. Would those headers hurt the low end torque i love so much? would i be better off getting pulleys or something else?? and if they are good...are there any tips i need to know when im putting them in?? thanks alot for any help.

drudis · 03-30-2002, 12:39 PM

I dont see you gaining much by ANY header, now that you already have the h-pipe. If you do want headers, get the 1-1/2" EL shorties. They fit easier, and actually help low end, and not gain (as much) top end, but with everything else stock, there really isnt much top end anyways.
Here is the 1-1/2 that I used (and sold when I went to lungtubes for my 500hp combo):

Puilleys are worth an honest 7rwhp on the dyno (been there, done that), but you may have some low-charging issues...

Gasman · 03-30-2002, 09:49 PM

I have the same basic modifications as you. Believe these guys when they say low end torque will be effected with 1 5/8" unequal headers (use 1 1/2"). I Just installed BBK 1-5/8" unequal length headers, BBK off road “H” pipe and Dynomax Super Turbo catback exhaust. Definitely lost some low end torque, But it sounds great.

Import Slayer · 03-30-2002, 10:17 PM

hmm...alright well thanks guys. i think ill hold off and keep the stock headers and get pulleys then or something. thanks

03-30-2002, 06:59 AM	#1
Import Slayer Registered Member Join Date: Mar 2002 Location: bc canada Posts: 48	question on mac headers Would MAC 1 5/8 (unequal) headers be too big for a basically stock 5.0? i have an off road H pipe, glasspacks, and a K&N filter as the only mods so far. Would those headers hurt the low end torque i love so much? would i be better off getting pulleys or something else?? and if they are good...are there any tips i need to know when im putting them in?? thanks alot for any help. __________________ now daddy ran whiskey in a big block dodge 89 5 speed LX 5.0 - off road h pipe, B&M short throw, 13* timing, blue bottle glasspacks, removed air silencer, accel super stock 8mm, bosch platinum 4's, no times

03-30-2002, 12:39 PM	#2
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	I dont see you gaining much by ANY header, now that you already have the h-pipe. If you do want headers, get the 1-1/2" EL shorties. They fit easier, and actually help low end, and not gain (as much) top end, but with everything else stock, there really isnt much top end anyways. Here is the 1-1/2 that I used (and sold when I went to lungtubes for my 500hp combo): Puilleys are worth an honest 7rwhp on the dyno (been there, done that), but you may have some low-charging issues... __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com Last edited by drudis; 03-30-2002 at 10:18 PM..

03-30-2002, 10:17 PM	#4
Import Slayer Registered Member Join Date: Mar 2002 Location: bc canada Posts: 48	hmm...alright well thanks guys. i think ill hold off and keep the stock headers and get pulleys then or something. thanks __________________ now daddy ran whiskey in a big block dodge 89 5 speed LX 5.0 - off road h pipe, B&M short throw, 13* timing, blue bottle glasspacks, removed air silencer, accel super stock 8mm, bosch platinum 4's, no times

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03-30-2002, 09:49 PM	#3
Gasman Registered Member Join Date: Feb 2002 Location: NH Posts: 10	I have the same basic modifications as you. Believe these guys when they say low end torque will be effected with 1 5/8" unequal headers (use 1 1/2"). I Just installed BBK 1-5/8" unequal length headers, BBK off road “H” pipe and Dynomax Super Turbo catback exhaust. Definitely lost some low end torque, But it sounds great.