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Old 04-26-2010, 04:26 AM   #1
sethalot
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Exclamation aluminum 351C heads

ok so im seriously thinking of tearing down the starion and turning it into a street/strip car, though it would be more strip than street so im not to worried about street manners. I've decided it will either be a 302-331cid, 351W, or a 351C. Right at the moment though im thinking 351C does anyone know of any good aluminum heads besides the edelbrock ones?
or would you recommend sticking with the iron heads. I would want 450-500rwhp and the engine would be backed with a 5spd trans.

edelbrock performer rpm _________________Stock 2V
Quench chamber 60cc __________________open chamber 76.6-70.9cc
int. runner 190cc exh. runner 75cc________small port
int. valve dia 2.05 exh. 1.60 _____________int. valve dia 2.05 exh. 1.659



Stock 4V _______________________________Stock Boss 351
Quench chamber 61.3-64.3cc______________Quench chamber 64.6-67.3cc
large port _______________________________large port
int valve dia 2.198 exh. 1.715_______________int. valve dia 2.198 exh. 1.715
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Old 04-26-2010, 11:34 AM   #2
71Mach14spd
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I would stick with the cast iron heads, those back in the today were designed to be basically what aluminum heads are today. I left them on my clevo and im making 500 hp to the flywheel. Just a waste of money to put aluminum heads on but that's just my opinion.
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Old 04-26-2010, 02:42 PM   #3
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CHI heads blow most other heads out of the water, whether they go on a W or a C. If you have an engine that makes 500hp on the iron heads a direct swap to CHI 3V heads(their own hybrid design) Would yield 600+hp. But they're not cheap. They're an extremely good cylinder head, and if you go aluminum I'd skip right past the Eddy head and get the CHI. Barring that, if you're made of money, have a money tree, or someone is about to die an leave you tons of money, you can get the Brodix Neal BF series heads which are one of the best heads on the planet period....but did I mention they're expensive?
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Old 04-26-2010, 04:02 PM   #4
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+1 CHI. CHI heads, intakes, and a Cleveland based motor won the Engine Builders Challenge last year in a Kasse motor (677hp/597ft*lbs). They are pricey, but kick some ars, especially if you plan to race it.
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Old 04-26-2010, 09:07 PM   #5
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O.O wow while the CHI heads look like the way to go the price is pretty steep, does anyone know of any place that makes a reproduction 351 boss style head in aluminum? mostly im pushing the aluminum over the cast iron in an attempt to keep the weight down. im shooting for the car to weigh roughly 2500-2700lbs stripped down with me in it. i appreciate the info, maybe i just wont buy the rifle i want and spring for the CHI heads
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Old 04-27-2010, 12:15 AM   #6
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Good luck getting that kind of weight with an iron block and metal body panels. And good heads cost money, you get what you pay for.
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Old 04-27-2010, 12:25 AM   #7
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Have you looked at http://www.ausfordparts.com/
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Old 04-27-2010, 12:26 AM   #8
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Quote:
Originally Posted by 67mustang302 View Post
Good luck getting that kind of weight with an iron block and metal body panels. And good heads cost money, you get what you pay for.
car weighs in at just over 3000lbs shedding 300lbs worth of carpet, sound deadening material and interior, and opting for fiberglass hood, front fenders, and hatch, 2700 doesn't sound unreasonable to me. and yes you get what you pay for but im not sure if spending $2600 on a set of heads is worth it to me.

thanks for the link andrew

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Old 04-27-2010, 12:39 AM   #9
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According to what? Have you actually weighed it? A 69 with a 351C is going to have a really hard time only being 3,000lbs. More like 3,200lbs. Aluminum heads save around 40lbs, a fiberglass hood will save about 20 lbs, and fiberglass fenders together will save 10-20lbs, and the apron about 5-10lbs. Do you really think your car has another 200lbs worth of carpet and insulation? And that's just to get to 2,700lbs AND assuming you actually start at 3,000lbs. Cars with fuel and drivers are heavier than most people think, 3,000lbs curb weight is LIGHT for a car, a modern Ferrari F430 is 3,100lbs, and that's with lightweight exotic steel alloys, aluminum almost everything, and some carbon fiber parts.

Reducing weight just over the front end has a big impact on handling, so that's certainly a good goal to shoot for, but don't waste a lot of time and money trying to get the weight down that low, unless it's a full race car and you can just pull everything out of it...wiring, seats, interior panels etc.

And as far as the heads being worth it, if you have the cash, the money spent on CHI heads will produce FAR more performance than money spent trying to save a few hundred pounds of weight.
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Old 04-27-2010, 01:23 AM   #10
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the car is a 1987 starion.... sorry if you misunderstood this engine wouldnt be going into my 69'
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Old 04-27-2010, 01:23 AM
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225, 351c, 3v, 46l, aluminum, audio, boss, cast, chi, clips, edelbrock, heads, iron, performer, rpm, sale, trickflow

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