BBC-Aluminum heads?

[TD509EFI]

For a stock replacement , it's tough to beat Brodix Race Rite Oval port heads. A direct bolt on with no mods due to exhaust port location.
Brodix makes a quality product, and though I haven't used the Race Rites, I've heard good comments from others.



John

[Bandit]

Hell i am confused? so bandit you have a 402? with what heads currently?

Yes, it's a BB 402, bored .10 over, with the stock oval port heads. I can get the casting # if it helps. But I know they are the low-flow small oval port castings, the shop that built the motor said the engine could gain a lot from some better heads.

[xx_ED_xx]

Ah Ok. I think you have what are refered to as peanut port heads. And yes they suck great for towing motors that are kept below 4000 rpm about it. IF it was me i would put a set of large oval ports on it. 2.19 1.88 valves. but i know u are tryin to take weight off the nose as well. but hell i couldnt justify spending 2 g's on some heads just for that reason.

[Bandit]

Ah Ok. I think you have what are refered to as peanut port heads. And yes they suck great for towing motors that are kept below 4000 rpm about it. IF it was me i would put a set of large oval ports on it. 2.19 1.88 valves. but i know u are tryin to take weight off the nose as well. but hell i couldnt justify spending 2 g's on some heads just for that reason.

I can justify it--if I would have got these heads from the beginning I could have saved myself the trouble of a cracked head, the cost of rebuilding on the heads, and the frustration involved. And saved some weight off the nose.

[rocketman]

Brodix race rite heads,can't go wrong

[EFI69Cam]

I can justify it--if I would have got these heads from the beginning I could have saved myself the trouble of a cracked head, the cost of rebuilding on the heads, and the frustration involved. And saved some weight off the nose.

The edelbrocks sound like the way to go. Don't be afraid of the smaller chamber, its an excellent design, and will increase your compression a point or two. Check piston to valve clearance though.

[fotoboy]

Headers too small IMHO, I had 1 5/8 and went to 1 7/8 on a closed chamber 396 pump gas motor, was a huge difference.

[pdq67]

I didn't think anybody made 1.625" BB headers so what gives??

366" tall decker to a 408"???

You guys notice all the BS info given out in this thread??

Guy, please do your homework AND feed us the right info so we can help you!!

pdq67

[Bandit]

I didn't think anybody made 1.625" BB headers so what gives??

366" tall decker to a 408"???

You guys notice all the BS info given out in this thread??

Guy, please do your homework AND feed us the right info so we can help you!!

pdq67

Forget the header size, it's beside the point! It's a 402 BB, bored .10 over for about 408 ci. It's NOT a tall deck motor, somebody told me wrong! It has stock oval port heads, I just want to know which aftermarket heads I should buy to improve it!!

[fotoboy]

I didn't think anybody made 1.625" BB headers so what gives??

366" tall decker to a 408"???

You guys notice all the BS info given out in this thread??

Guy, please do your homework AND feed us the right info so we can help you!!

pdq67

I had 1 5/8 header on my 69 396, not that hard to figure out what size they were, they were way too small, pretty sure I know what I am talking about.Sorry you dont think its possible ir 2 people on this post had them.

[fotoboy]

I had 1 5/8 header on my 69 396, not that hard to figure out what size they were, they were way too small, pretty sure I know what I am talking about.Sorry you dont think its possible ir 2 people on this post had them.

I used to spin my 396 with closed chamber oval ports past 7 k on a reg basis, smaller cc runners would benifit better on a 396

[Sundance]

http://www.strokerengine.com/page/page/1268049.htm

[xx_ED_xx]

Great link

[rocketman]

Just use Brodix Race rite heads and set of hooker super comp headers.

[fotoboy]

cool write up

[Bandit]

For a stock replacement , it's tough to beat Brodix Race Rite Oval port heads. A direct bolt on with no mods due to exhaust port location.
Brodix makes a quality product, and though I haven't used the Race Rites, I've heard good comments from others.
John

Thanks to you and Mr. rocketman for turning me on to these fine heads. I did in fact go with Brodix, ordered up a set of 115 cc chamber Race-rites. According to the Summit racing tech, using my 402's casting #'s, my stock heads are a 113 cc chamber. So I should drop a point or 2 of CR, which is OK with me because good gas is hard to get. I should still pick up some good HP with these heads, right? Of course I will check piston-to-valve clearance and pushrod length before installation. Is there anything else I should check?

PS Sorry about putting out any bogus info earlier, and any confusion that may have resulted--I wrote my initial post without having my engine specs in front of me--a mistake I won't make again!
I do appreciate all the help!

Paul

[xx_ED_xx]

what cam you running and pistons?

[Bandit]

Cam specs:
Comp hyd. roller
gross valve lift .566/.566
duration at .006 tappet lift 280/280
duration at .050 int 224/exh 224
lobe lift .3330 int/exh
lobe separation 110.0

Pistons:
Wiseco Part # PT039H6
Piston # 5039H6
Compression height: 1.760
Bore: 4.1550
sugg clearance: .0050


I was just doing some research online and I discovered conflicting info about the heads currently on my motor, casting # 336781. All the info I have found says they are open chamber 454 large-port oval heads. But some sources say 113cc combustion chambers and some say 118cc. What gives? Can somebody tell me which it is for sure? Will the 115 cc chamber Brodix heads I ordered make a significant difference in my compression ratio? Also, are these Brodix heads going to be worth the price of admission?

[xx_ED_xx]

Well with heads it varies depending on how many valve jobs etc best thing to do is cc the heads then you know for sure. Piston have any dome? And what did you have to do to run a hyd roller? i have been considering this on my 454

[xx_ED_xx]

supposedly 10.5-1 with your current setup and new heads, the cam will help bleed off cylinder pressure