Headers Hitting Floorboard - Team Camaro Tech
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post #1 of 4 (permalink) Old Mar 17th, 11, 04:03 PM Thread Starter
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Headers Hitting Floorboard

Hey Guys,
Maybe someone has had this problem and can give me some guidance. Ok here is the situation I have a new 383 Small Block with Edelbrock RPM heads that I just put into a 1967 Camaro, I am using Dougs D308 headers and I switched the motor mounts to Energy Suspension mounts here is a link


Now I have the engine in and the headers install my drivers side header is hitting the floorboard. I guess not the header itself but the flange where you bolt up the reducers. I did my research on these mounts from this site and everyone said that they were the ones to use. Does anyone have any ideas on how to fix this problem maybe changing motor mounts or possibly headers. Any help appreciated.


1967 Camaro M20 Muncie
Full Autometer Gauges
Vintage Air
8.5 10 Bolt 3.42 Auburn Posi, Yukon 30 Spline Axles
Hotchkis Frame Connectors
Caltrac Bars
Original 275 HP 327 (Soon to be 450 HP 383)
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post #2 of 4 (permalink) Old Mar 17th, 11, 05:21 PM
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Location: Rockland Cty/Melb bch Fla
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Re: Headers Hitting Floorboard

I would start by putting the stock GM mounts back in. Check to make sure you have the correct engine mounts and frame stands for your 327.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #3 of 4 (permalink) Old Mar 18th, 11, 06:01 AM
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Location: 2 Dog Town in West Texas
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Re: Headers Hitting Floorboard

I have the same engine mount, D368 (1 3/4"tubes) headers on AFR heads, my flange is close , probably within Ĺ".
First thing I would look at is your body mounts. If they are old and squashed, thats your problem. Since installing new subframe body bushings, my floor to header clearance increased.

TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #4 of 4 (permalink) Old Mar 18th, 11, 08:39 AM
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Location: Gilroy,CA
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Re: Headers Hitting Floorboard

Agree with Don. My headers hit the floor boards when my subframe bushings were squashed. With new body/subframe bushings, same motor mounts as you, but Hooker Headers I have just over 1/2" of clearance on the collector flanges.

Russ (RJ)
The Garlic Capital, Gilroy,CA

(sold June 15,2014) 1968 RS convertible that is not quite stock

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