Stock 360 header size?
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Freshman User
Joined: Dec 2014
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From: Central Pennsylvania
Stock 360 header size?
Looking at header options for my '70 f-250 4x4 w/ 360 and 4 speed. Was looking at mad dog headers and saw that the ones that they make to fit my truck are 2" primary tubes and 3½" collectors. What size are stock exhaust ports on a 360, and what would a good size header be for it? I don't plan on doing anything crazy with the truck, just mostly drive it, occasionally with weight in bed.
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The exhaust ports are probably 1.28 x 1.84, as the later D2.. heads are said to be very similar to C8...heads for 390s and 428s.
FE Cylinder Head I.D. and Application Chart
IMO the more important thing about any headers would be fit, how well they seal, and how heavy they are or what coating they have to prevent or slow down rust.
FE Cylinder Head I.D. and Application Chart
IMO the more important thing about any headers would be fit, how well they seal, and how heavy they are or what coating they have to prevent or slow down rust.
Cargo Master
Joined: Sep 2004
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Freshman User
Joined: Dec 2014
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From: Central Pennsylvania
I looked at the pics of the mad dogs you posted, I like the idea of them being out away from the starter and the rest of the engine. My questions are, are the 2" primaries too big for my stock engine? Everything I read says that tri-y headers will have the most increase in low-mid power range. Does anybody have any experience with these?
Fleet Owner
Joined: Dec 2009
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From: NorCal
I looked at the pics of the mad dogs you posted, I like the idea of them being out away from the starter and the rest of the engine. My questions are, are the 2" primaries too big for my stock engine? Everything I read says that tri-y headers will have the most increase in low-mid power range. Does anybody have any experience with these?
Put the money you don't spend towards a Pertronix ignition, open element air cleaner and filter, 2.5-inc dual tubes, and free flowing mufflers of your choice.
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From: Central Pennsylvania
Have you heard anything about Stans headers? They are available in 16ga or 14ga and are 3/8" thick flanges with 1¾" primaries. Already upgraded to the pertronix set up. Any recommendations for a good air cleaner set-up for the 2 barrel that will fit other carbs if I decide to go bigger? It would most likely be a bigger 2 barrel anyway.
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Have you heard anything about Stans headers? They are available in 16ga or 14ga and are 3/8" thick flanges with 1¾" primaries. Already upgraded to the pertronix set up. Any recommendations for a good air cleaner set-up for the 2 barrel that will fit other carbs if I decide to go bigger? It would most likely be a bigger 2 barrel anyway.
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