Does anybody know anything about these heads offered from MKhammer Speed and Marine Inc., seems to be priced right but unfamilar with the name.


BIG BLOCK CHEVY 454/502/540 ALUMINUM MARINE CYLINDER HEADS 1- pair

320 cc RUNNERS AND 64CC COMBUSTION CHAMBERS. ALUMINUM CYLINDER HEADS WITH UPGRADED SEVERE DUTY STAINLESS STEEL INTAKE AND INCONEL EXHAUST VALVES FOR THE DEMAND OF MARINE USE. High performance Marine Aluminum Cylinder heads for Big Block Chevy. MAKE EXCEPTIONAL POWER OVER STOCK RECTAGLE PORT IRON HEADS . All are hand assembled with the best FARREA valves and AND ERSON SPRINGS & hradware DART GUIDE PLATES for High performance use. All heads come with Severe duty stainless steel intake valves and inconel exhaust valves to handle hard running that a marine engine is subjected to.

THESE HEADS ARE A COMPLETE AND SET UP FOR A ROLLER HYDRAULIC OR HYDRAULIC FLAT TAPPET CAM WITH A MAX LIFT OF .600.

THESE HEADS WILL WORK WITH ALL BIG CHEVY BLOCKS GEN IV,V,VI

INCLUDES:

2- ALUMINUM HEADS WITH 119CC COMBUSTION CHAMBERS AND 320 CC RECTANGULAR RUNNERS

8- SEVERVE DUTY INTAKE VALVES 2.250 one piece swirl polish heads w/ hardened tips

8- INCONEL EXHAUST VALVES 1.880

16-VITON VALVE STEM SEALS

16- VALVE SPRINGS FOR FLAT TAPPET HYDRAULIC OR ROLLER HYDRAULIC CAMSHAFT

16- SPRING CUPS

16- VALVE SPRING RETAINERS 10%

16- 7/16 ROCKER STUDS

8- DART ADJUSTABLE GUIDE PLATES

9- VALVE STEM LOCKS 10%

http://www.ebay.com/itm/290611613099...=p5197.c0.m619

"64cc combustion chambers" ?

Why does the seller not tell you what brand heads they are, or some flow numbers? Sounds like some of the parts used are good but I have a feeling they're chinese heads with a hand full of good parts to make them seem like they're quality. Also I would not think a head for a 454 would be good for a 540, thats quite a range. You can get as cast AFR 265 ovals for a few bucks more and they would work great up to a 502 and I'm betting would outflow the ebay heads.

here you go,same head,better deal.

http://saskatchewan.kijiji.ca/c-cars...AdIdZ361613312

correction on the cc in the chambers,,they go from 116cc's to 129 cc's..you will need to correct this..

They supposedly list and assemble them with some good decent sounding parts but I suspect the castings may be the Chinese import castings large numbers of people are pitching thru ebay, craigs list, etc. There have been and apparently continue to be problems and issues on those head castings.

Any cylinder head is only as good as its casting!

Do a Google search on the seller and verify they are a viable marine engine parts supplier with some history and reputation for supplying quality parts and standing behind their products. Anybody anywhere can create an Ebay sales entity and pitch product as though they are the greatest thing since sliced bread!

Just call the ebay seller and ask where these heads are cast and by what casting company? This will prbably flush the possible rat from the woodpile. Be careful.

Best Regards,
Ray @ Raylar

THANKS TO ALL THE INPUT, I GREATLY APPRECIATE IT!!

Cliff

if it seems to good to be true,it is.

So true. No free lunch in the marine business. Bite the bullet and get some dart,Brodix etc.

anyone find out anything about these heads? or know anything about the marine shop
http://www.mkhammer.com/aluminum-mar...-p-302689.html