Exhaust TECH Mufflers, Headers and Pipes Issues

          
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Old 02-17-2010, 02:58 PM
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Oak Oak is offline
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Default Ram Air 3 manifold clearance

Yesterday, I mounted my RA3 manifolds on my 72 GTO.

The car has new 455 HO motor mounts and like it is now, there´s about half an inch of space between the control arm mounting bracket and the outlet flange on the drivers side.

I am curious how much space you guys have between?



Regards

Johan , Sweden

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1968 Firebird 350
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Old 02-17-2010, 04:17 PM
rustedgoat rustedgoat is offline
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Here's some pictures of my 71 conv with 66/67 RA manifolds. The drivers side was very close to the lower control arm mount. I ended up using a bolt that took an allen head wrench to get them tight. Worked fine for many years.
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Old 02-18-2010, 02:02 PM
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I am planning to do some bracket racing this summer,
and was a bit worried that the flange/manifold would touch the bracket when the engine twists.
Like for example when launching with slicks mounted.

Here´s a couple of pictures.
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Old 02-18-2010, 02:41 PM
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David Jones David Jones is offline
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Quote:
Originally Posted by Oak View Post
Yesterday, I mounted my RA3 manifolds on my 72 GTO.

The car has new 455 HO motor mounts and like it is now, there´s about half an inch of space between the control arm mounting bracket and the outlet flange on the drivers side.

I am curious how much space you guys have between?



Regards

Johan , Sweden
Looks about right. With the RAIII manifolds and 2.5" pipe it's tight in there.

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1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core.
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Old 02-18-2010, 03:16 PM
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Ok, that sounds good.

Thanks for the answers.


Regards.

Johan

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1968 Firebird 350
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