Pontiac RACE heads

Post by **ClassKing** » Mon May 09, 2005 8:56 pm

Oh ye flatulent flamer: My reply says nothing negative. But for those that may need a simpler answer:

I too applaud anyone trying to manufacturer new pieces. Applauding the efforts? - fine. Achiveing notable results - and applauding those results - hasn't happened yet. The applause should die quickly right after the announcement of the new item as everyone waits for unbiased results. If you're the salesman or owner of the product, then everyone understands your unwarranted hype. I'm just here to keep the entire playing field visable for the new guys trying to learn.

So IMO, the applauding needs toned down a bit unitl there's something to tangibly observe.

And, just because I'm apparently the only highly visable builder left that caters to the original Pontiac blocks, cranks and heads full potential, doesn't mean I wouldn't use new stuff if the goal demanded it.

phoenix · Post by **phoenix** » Mon May 09, 2005 9:12 pm

Cool,Thanks rob. Maybe a nice canted valve H$E$A$D could over come some of the small bore spacing issues. Woa! I dozed off there for a second!

Donovan · Post by **Donovan** » Mon May 09, 2005 9:19 pm

ICTCrob wrote:Shane,

The graphite blocks were dead last time I talked to Bob ...Tough to pour.

-Rob

WWW.ICTCengines.com

Is it tough to pour or is it tough to machine. I know it takes special tooling to machine it.

ICTCrob · Post by **ICTCrob** » Tue May 10, 2005 7:02 pm

There's just little reason to use stock engines with lifter bores stapled to the block when two manufacturers are making aftermarket blocks that are almost cheaper than bracing up stock blocks to handle 700+hp and any Traditional Pontiac head will bolt right on. Can't believe anyone is still balking on price and not looking at the larger bore size advantages...think of the resale value then!!!

Yea, I've pitched the dart little chief and Brodix symetrical designs to the big Pontiac hobby enthusiasts even some Hemi stuff. Big step and may require some fancy work to the aftermarket blocks. Still, we're in a pretty good spot right now with the BOP and Edelbrock Victor intakes, KRE high ports, wenzler, tiger heads. Make 850-925hp on motor for 17 grand or so. Run 9.0s all steel and 7 secs in a digger....that's pretty dang quick. Oh and the bore spacing is big compared to a SBC!

Check out two guys running IA blocks in NHRA Top Sportsman!

http://www.dragracecentral.com/DRCStory.asp?ID=92906

NSCA "Real Street" Champ & cover of the website!!

http://nsca-racing.com/

applaud, clap, whistle, Applaud, Applaud!!!

-Rob

WWW.ICTCengines.com

Aaron · Post by **Aaron** » Thu May 12, 2005 8:25 am

Guys,

The most difficult part of making CGI (compacted graphite iron) is the rate at which the casting cools. The cooling rate determines the grain structure which is how you get CGI. It is difficult to get the right grain structure during cooling.

My experience has been that it does not take special tooling to machine these blocks. Existing tooling will do the job at 80% of the normal speed and feed rates. The tool wear is higher but the machining quality is good. I'm sure improvements in cycle time can be made with dedicated tooling for CGI but existing machines do work at slower rates.

Best regards,

Aaron

Parkhurst · Post by **Parkhurst** » Thu Jul 07, 2005 2:46 pm

ICTCrob wrote:There's just little reason to use stock engines with lifter bores stapled to the block when two manufacturers are making aftermarket blocks that are almost cheaper than bracing up stock blocks to handle 700+hp and any Traditional Pontiac head will bolt right on. Can't believe anyone is still balking on price and not looking at the larger bore size advantages...think of the resale value then!!!

Yea, I've pitched the dart little chief and Brodix symetrical designs to the big Pontiac hobby enthusiasts even some Hemi stuff. Big step and may require some fancy work to the aftermarket blocks. Still, we're in a pretty good spot right now with the BOP and Edelbrock Victor intakes, KRE high ports, wenzler, tiger heads. Make 850-925hp on motor for 17 grand or so. Run 9.0s all steel and 7 secs in a digger....that's pretty dang quick. Oh and the bore spacing is big compared to a SBC!

Check out two guys running IA blocks in NHRA Top Sportsman!

http://www.dragracecentral.com/DRCStory.asp?ID=92906

NSCA "Real Street" Champ & cover of the website!!

http://nsca-racing.com/

applaud, clap, whistle, Applaud, Applaud!!!

-Rob

WWW.ICTCengines.com

You Rule!

SP~