- Joined
- Jul 10, 2011
- Messages
- 2,056
- Reaction score
- 606
- Location
- Germany, Southwest, Black Forest
- My Car
- 1973 Ford Mustang Mach 1 T5 Q-Code 4-Speed
Hi guys,
my buddy and I were installing the Summit exhaust system SUM-680111 and the hooker headers HOK-6915HKR. The result is awesome in sound and agility, my mustang is now another car, a torque- and drive-monster
BUT: why are the primary tube ports on the headers so small?!? And they have ugly welded seams which are in the size of the smaller 2V head's exhaust ports:
But I have the 4V heads (1971's) with the big ports and they would have been covered by the gasket only a little with a lot of blow by. Why is this manufactured as it is? There are so many hooker jusers out there - nobody gets to this point before? I get the "right" ones from summit for 4V heads 71-73...
So we decided yesterday to flatten the whole flange and made the edges a lot smoother and then had to weld the seams as a result of this - it was a PITA work ... :dodgy:
It is now a little bit better fitting to my large exhaust ports but not exactly what we want.
Is this by purpose from the manufacturer?
What do you think about it? Keeping in mind different stances concerning torque etc. ...
The rest of the exhaust system also needs a bit of tweaking because of my staggered shocks but the result is fantastic
16 hours of work at a time - my knees singing a song of it today...
Tim
my buddy and I were installing the Summit exhaust system SUM-680111 and the hooker headers HOK-6915HKR. The result is awesome in sound and agility, my mustang is now another car, a torque- and drive-monster
BUT: why are the primary tube ports on the headers so small?!? And they have ugly welded seams which are in the size of the smaller 2V head's exhaust ports:
But I have the 4V heads (1971's) with the big ports and they would have been covered by the gasket only a little with a lot of blow by. Why is this manufactured as it is? There are so many hooker jusers out there - nobody gets to this point before? I get the "right" ones from summit for 4V heads 71-73...
So we decided yesterday to flatten the whole flange and made the edges a lot smoother and then had to weld the seams as a result of this - it was a PITA work ... :dodgy:
It is now a little bit better fitting to my large exhaust ports but not exactly what we want.
Is this by purpose from the manufacturer?
What do you think about it? Keeping in mind different stances concerning torque etc. ...
The rest of the exhaust system also needs a bit of tweaking because of my staggered shocks but the result is fantastic
16 hours of work at a time - my knees singing a song of it today...
Tim