View Full Version : Hood clearance
01-10-2005, 08:33:00 PM
Can anyone tell me how much room there is between the top of the carb air cleaner mounting surface to the hood on a flat hood? I have a Holley 650 dp and I need that clearance to determine how biuld my carb bonnet on my turbo project. My motor is out (350 SBC. Holley intake is approximately 4" tall in the front)so I can't take an accurate measurement. I need about 3 1/2" to 4". Any help would be REALLY appreciated. Thanks in advance Pat
01-11-2005, 10:49:00 AM
01-12-2005, 02:55:00 PM
<font face="Arial,Verdana" size="2">Originally posted by Mwilson:
set the cleaner base on the carb, stick a peice of "claydo" at the edge of the base and move it around the perimeter opening and closing the hood?
I think he said the motor is out of the car (kinda hard to do this test http://www.nastyz28.com/ubb/wink.gif )
In my 71, I have a 327 with a Holley 650 DP, RPM intake, drop base air cleaner with about a 2" air cleaner. Hood clearence is about 1/8"
01-12-2005, 04:26:00 PM
Heck he can wait til its in to buy the air cleaner thats not holding anything up!
I wouldn't chance a whole lot of fabrication or purchasing without the motor in if i was doing it.
350 punched out to 5.3liters with 427 heads, muncie 4 spd 3,000 stall,
[This message has been edited by Mwilson (edited January 12, 2005).]
01-13-2005, 09:52:00 AM
I was hoping to avoid installing and removing the engine several times in case I needed to do some cross member work. I just painted the car black and wanted to minimize the chances of scratching the paint.
theflash, thanks for the info. My car came with a trashed glass hood so the engine was never in with a flat hood. Of course plans change such as deciding to go turbo after I had the engine out and car painted. Hope I could bother you with one more question, how much room between the pan and cross member? I may fab up some adjustable mounts to lower it if there is room. again, thanks Pat
01-13-2005, 12:51:00 PM
If it helps any, I have a small block with a single plane holley manifold and a holley throttle body, and my procharger bonnet has about 3/4" or so clearance, but my throttle body is much shorter than a carb. (I am running the stock hood)
01-13-2005, 01:55:00 PM
I would just fab the motor up the way you want, and worry about the hood later, unless for some reason you must use a stock hood.
I don't know about the oil pan, my car is put away for the winter.
01-13-2005, 04:38:00 PM
Grizz, now we're talking. Do you know which intake your using? I can deduct what clearances I need using that along with what you gave me. Who's bonnet are you using? Yes, I want to keep the flat hood. New paint, stealth looking.
theflash, thanks for the info.
01-13-2005, 06:27:00 PM
I took a measurement on my car. My setup is a 73 Camaro with factory SBC mounts. The engine has a Edelbrock Performer 2101 manifold with a Holley 650 Double Pumper and a 3 3/4 inch open element air cleaner. With this combo, I couldn't run a wing nut on top of it or it dinged my hood. I just measured it and came up with a total of 7 1/8 inches from the carb mounting flange on the manifold to the top of the air cleaner.
Hope this helps.
1973 Type LT/RS
01-14-2005, 08:25:00 AM
amargari, thanks for the information. Is you air cleaner a drop base? If so how much? Again, thanks for taking time to measure.
01-14-2005, 09:48:00 AM
No, It isn't a drop base air cleaner. Here is a picture as it sat a few years ago:
Here is a link to a bigger version:
1973 Type LT/RS
[This message has been edited by amargari (edited January 14, 2005).]
01-14-2005, 04:49:00 PM
amargari, Thanks for postin gthe pic, it really helps. Looks like th ebreather sits just slightly above the cowl area. This will help a lot.