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* USD MSRP ex Dealer. Excludes shipping, handling and any applicable and country or jurisdictional specific taxes.
All KB® HEMI, RB/WEDGE, or PRO blocks whether in STREET, RACE or SEMI-FINISHED configuration start life from the same high-quality A356 aluminum T6 heat treated low-pressure aerospace casting
| P/N | DESCRIPTION |
| 51100.4500S | HEMI Street STD Deck Height 4.500 Bore 1/2 in. Head Studs |
| 51100.4500S716 | HEMI Street STD Deck Height 4.500 Bore Machined for 7/16 in. Head Studs |
| 51100.4250S | HEMI Street STD Deck Height 4.250 Bore Machined for 1/2 in. Head Studs |
| 51100.4250S716 | HEMI Street STD Deck Height 4.250 Bore Machined for 7/16 in. Head Studs |
| P/N | DESCRIPTION |
| 51100.4500R | HEMI Race STD Deck Height 4.500 Bore 1/2 in. Head Studs |
| 51100.4250R | HEMI Race STD Deck Height 4.250 Bore 1/2 in. Head Studs |
| 51100.4500RT | HEMI Race +.500 Deck Height 11.225 4.500 Bore 1/2 in. Head Studs |
| 51100.4500RT-S | HEMI Race +.500 Deck Height 11.225 4.500 Bore 1/2 in. Head Studs SOLID Block |
| P/N | DESCRIPTION |
| 44000.4500S | RB/WEDGE Street STD Deck Height 4.500 Bore |
| 44000.4250S | RB/WEDGE Street STD Deck Height 4.500 Bore |
| P/N | DESCRIPTION |
| 44000.4500R | RB/WEDGE Street STD Deck Height 4.500 Bore |
| 44000.4250R | RB/WEDGE Street STD Deck Height 4.250 Bore |
| 44000.4500RT | RB/WEDGE Race +0.500 in Raised Deck Height (11.225 in.) 4.500 Bore |
| P/N | DESCRIPTION |
| 51100.4500PRO | PRO Semi-finished (WATER JACKETED BLOCK) |
| 51100.4500PRO-S | PRO Semi-finished (SOLID BLOCK) |
Keith Black Racing Engines® is a registered trademark of Keith Black, Inc. All engine blocks are sold exclusively through the Keith Black Racing Engines® Dealer Network by Authorised Dealers. Keith Black Racing Engines® does not sell engine blocks direct to consumers or engine builders outside its Dealer Network. Standard Terms and Conditions of Sale, and Limited Warranty apply to this product. Keith Black Racing Engines® Engine block products are not legal for sale or use in California on any pollution controlled motor vehicles. WARNING This product contains chemicals known to the State of California to cause cancer and reproductive harm www.P65Warnings.ca.gov
Since its debut in 1973, the Keith Black aluminum 426 Hemi engine has been responsible for more record-setting performances on land and in the water than any other specialty engine. The Keith Black Hemi held every national record in Top Fuel between 1974 and 1984. Milestones achieved by this power plant include Don Garlits’ shattering of drag racing’s 250 mph barrier, Don Prudhomme’s first ever 5-second Funny Car clocking, and Shirley Muldowney’s three World Championships (and numerous other records).
There are many reasons for the tremendous success enjoyed by this engine. But, perhaps the most important of these reasons is the fact that the Keith Black aluminum Hemi, now in its 48th year, is the product of a never-ending development program. Now manufactured using the highest quality materials and manufacturing processes, while remaining true to the founding values of Keith Black Racing Engines – extended service-life, availability of compatible parts and dependability. Read about what sets the Keith Black Hemi apart from other Hemi engine blocks, and learn more about this legendary engine.
Keith Black Racing Engines® Hemi. Feared and respected since 1973. Engine Blocks for Extreme Horsepower™.
Significant casting material added to support the use of modern, large diameter camshaft cores
All STREET blocks support OEM journal diameter camshaft journals in the OEM location
All RACE blocks have a +0.250 in raised cam location providing additional rotating assembly clearance for larger stroke applications, and improved valvetrain geometry
KB® STREET HEMI blocks are machined for 65/60mm camshaft journal diameter (babbitt/roller bearing)
KB® RACE RB/WEDGE blocks are machined for 60/55mm camshaft journal diameter (babbitt/roller bearing)
ALL Keith Black® Chrysler HEMI and WEDGE based engine blocks are sold exclusively through the Keith Black® Authorized Dealer Network.
Our Authorized Dealer Network comprises a small number of professional racing-engine building shops. They represent the most experienced, relevant and respected Chrysler HEMI and 440 engine builders around. Having, without exception a long history in building class-winning and record setting Chrysler HEMI and 440 engines.
We chose to partner with these outstanding people and businesses to ensure you will receive the very best advice and support from hands-on people that build Chrysler HEMI and 440 based engines every day.
