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4500 to 4150 flange on this intake

Old 12-21-2011, 04:36 PM
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Default 4500 to 4150 flange on this intake

looking to install a crossover on my engine. the problem is that my intake is a little rough in the thermostat area. it wont properly hold a thermostat. I have a dart off of a 500hp. i run in frehwater. i have the 4150 800 holley off of a 500hp as well. i was looking at this intake (link below) seems to be a good single plane. and looking at this flange (link below) will this hinder my performance. looks like the taper will make it look like a big diamond shape. anyone running this combo? any other suggestions. And i DO want to run a thermostat. I could just bolt up the crossover and run no thermostat but i have mixed emotions. my friends hustler has wesco engines in it and it has oil thermostats (which i have) and no coolant thermostat. should i just go that direction? I have a hard time as is getting my oil temps above 160 anyways.

http://www.ebay.com/itm/World-Merlin...sories&vxp=mtr

http://www.allcarbs.com/detail.php?p...n=1&stt=0&gb=2
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Old 12-21-2011, 06:09 PM
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Looks like your going to have over $320 in that set up after shipping. Why not just kick in another $20 and get the right one.
http://www.ebay.com/itm/World-Merlin...sories&vxp=mtr

Or if you want to save some money get this one and clean it up.
http://www.ebay.com/itm/USED-DART-BI...sories&vxp=mtr


Also that one you refered to is for a tall deck. Is that what you need?

Last edited by picklenjim; 12-21-2011 at 06:22 PM.
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Old 12-21-2011, 07:10 PM
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Fixer,
Without a picture its hard to say, but if your present intake is aluminum and the rest of it is in good shape, I bet it would be less than a $100 job to weld it up and remachine a good seat for the thermostat. Or maybe just make a small 1/8" thick "repair" plate to hold the thermostat ? Actually sounds like a good product to make ?
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Old 12-21-2011, 07:47 PM
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i never use a thermostat with a crossover,ive been doing it like that for years with no problems,i do use oil thermostat to help get the oil up to operating temp,my water temp will go to 130,oil 200,when running hard.
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Old 12-21-2011, 08:20 PM
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is that manifold from world really good from 2500 rpms up?
looks to big for that
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Old 12-21-2011, 11:07 PM
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Originally Posted by mach1magnum
is that manifold from world really good from 2500 rpms up?
looks to big for that
Keep in mind it also says for 500+ cubic inch engines.
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Old 12-22-2011, 06:47 AM
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Nothing wrong with not running a water stat Mitch. Sure your water temps will be cooler, but not a big deal in freshwater.
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Old 12-22-2011, 09:16 AM
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Thank for the info. Yeah, my water temp never goes over 140 running hard it actually drops to around 135. if im cruising at a higher rpm (like 3800) i can get 145-147 out of the coolant temp. oil temps stay low as well. should i just keep what i got or get rid of that circ pump? Is it really worth it. The weight, the hoses and stuff, and the power it robbs?
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Old 12-22-2011, 09:18 AM
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Originally Posted by picklenjim
Looks like your going to have over $320 in that set up after shipping. Why not just kick in another $20 and get the right one.
http://www.ebay.com/itm/World-Merlin...sories&vxp=mtr

Or if you want to save some money get this one and clean it up.
http://www.ebay.com/itm/USED-DART-BI...sories&vxp=mtr


Also that one you refered to is for a tall deck. Is that what you need?

Crap! I need to pay attention. No, I have a short deck. THANK YOU!
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Old 12-22-2011, 09:26 AM
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Originally Posted by MILD THUNDER
Nothing wrong with not running a water stat Mitch. Sure your water temps will be cooler, but not a big deal in freshwater.
Those ambulance tires work on your trailer? I got a boat load more!
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