Brodix 18X heads???

[63corvette]

I used the 23 degree heads with a Ron's Porting Job on them on a 434 a few years ago.
They worked well and flowed better than the Brodix CNC BBC heads.
I had to pull the hood many times to prove the car had a small block and not a big block.
The 434 made almost 850 HP on the dyno and was very reliable with a dart block.
Same combo with a GM block not so reliable. I don't know what the difference in the blocks are but the Dart was much better and a little heavier.
Good Luck with your combo.
My 2 Cents

[Jason Oldfield]

I've heard very good things about these heads, and considered putting them on my 383 cid small block. But, I was advised against it since that motor only has a stock cast iron 4-bolt block, which wasn't really made to take 750+ hp, which is easily attainable with those heads. The cost difference to put together a motor using those 18° heads vs. a set of standard 23° heads is minimal. So, if you have the block and other components that can take the extra power, I'd go with them.

Good luck, and let us know which direction you go...

[Rich Biebel]

A friend of mine built a 420 using those heads. It made about 740 hp with a t-ram and 2 alcohol carbs. Not a real impressive number by any means. His car weighs close to 3000lbs and has run 9.20's at 143-144 after just a few runs. His best previous numbers were in the 9.50's at about140 using AFR 23 degree heads. The 18x's were not a huge improvement over the 23 degree stuff he had before when you take into consideration the added engine size. There are some very good 23 degree heads out there and probably run as well or better.......

[luckydog]

Originally Posted by Rich Biebel

There are some very good 23 degree heads out there and probably run as well or better.......

Such as.................
I'm also considering purchasing the 18X and would like some more information on this topic.

[R&S Motorsports]

Thanks for the responses guys. I am going to talk to Brodix at the PRI show this weekend but I always like to hear things from the real racer that have had experience with the product, I have learned through the years that the manufactures sometimes will tell you anything you want to hear! I will post any more info I get on them during the PRI show but I am pretty sure that these are the one I am going to go with. Everything I have heard about these has been great as long as you use a aftermarket block.

[luckydog]

Originally Posted by R&S Motorsports

Thanks for the responses guys. I am going to talk to Brodix at the PRI show this weekend but I always like to hear things from the real racer that have had experience with the product, I have learned through the years that the manufactures sometimes will tell you anything you want to hear! I will post any more info I get on them during the PRI show but I am pretty sure that these are the one I am going to go with. Everything I have heard about these has been great as long as you use a aftermarket block.

Are you looking at the standard or spread port?

[R&S Motorsports]

Originally Posted by luckydog

Are you looking at the standard or spread port?

Well let me tell the whole story this motor is for my new car I built for H/R I would probably be looking at the spread port but the problem is that 6 months ago I bought a $700 set of STD port headers for the motor out of the other car and I am not sure if I want to buy another set of headers for the spread port the difference between the two would have to justified. "Probably the ones that would make me run more inconsistent" right since I will be joining you on the H/R circuit next LOL...