Thicker Aftermarket Cast blocks for all your extreme duty maximum reliability conditions. If you utilize your equipment at the maximum, then these cast blocks are your answer

On Line Performance Parts

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Custom Racing Cast Iron Blocks

NEW  DART Iron Eagle Iron Block
Click Here For Spec. Sheet

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MERLIN BIG BLOCK CHEVY ENGINE BLOCKS

For the Ultimate in Dependable Power

Three Deck Heights For 572, 638, or 750+ Cubic Inches!
Minimum Machining Simplifies Preparation!
Designed for the Maximum in Strength Reliability and Displacement


The front view of an 10.200" Merlin Superblock (at left)shows its extra deck height, relocated main oil galley and a billet steel 4-bolt front main bearing cap. The main oil galley (arrow at left) has been moved alongside the camshaft journals to increase lubrication while greatly simplifying Stroker machining. The cam location on 10.600" blocks is raised .400" to accommodate extra large stroke/rod combinations. Each Merlin block accepts all factory accessories including the clutch pivot boss and fuel pump boss. Additional webbing ties all bolt bosses together for maximum rigidity.

 

 

 

This picture reveals four extra head bolt bosses (arrows)on both sides of the intake valley that match the bolt patterns of Chevy and Olds/ Pontiac pro stock heads. Head bolt holes are blind tapped to eliminate the potential for water leaks. Reinforced (.625" thick) deck surfaces improve head gasket sealing. On all three block versions, cylinder wall thrust areas are at least .400" thick @ 4.625" bore diameter. 9.800" and 10.200" versions are shipped with 4.430" Siamese bores. All three blocks can be bored up to 4.625". Lifter bores are indexed and reinforced.

 

 

World Castings incorporated every possible detail into the new Merlin blocks. Extra wide, dual pattern oil pan rails (see arrows at left) on 9.800" and 10.200" blocks are drilled to accept both stock configuration and Olds DRCE style oil pans. 11.625" Superblocks feature an Olds DRCE pan rails that are already machined for Stroker clearance. As the main oil galley has been moved, oil pan rails can be machined for Stroker cranks without danger of hitting oil (or water) passages. An 11.625" Superblock will accommodate a 5.600" crankshaft. The oil filter boss, as shown at the left, has been moved outward .550" to accommodate large Kickout oil pans. Provisions for both left and right starter mounting suits a greater variety of oil pan and chassis configurations. The billet steel main caps install against close tolerance index channels to eliminate side- to-side movement. Maximum strength yields greater potential for power and reliability.

 

Incredibly strong, billet steel, splayed 4 bolt main caps with ARP main studs are exclusively used (above photo). 9.800" and 10.200" caps are 8.200" wide, while 11.625" blocks feature 8.875" wide intermediate caps. Main saddles accept stock 2.750" crank journals with main cap bolt spacing increased to allow for line boring of 3.000" crank journals. Larger journals increase journal overlap which in turn increases crankshaft strength.

Solid front and rear bulkheads (arrow A at left) are a full 1.00" thicker top-to-bottom than Chevy Bowtie bulkheads. This feature is specially important in supercharged applications where other blocks' bulkheads have a tendency to flex and even crack. You simply will NOT find a better design than the Merlin Block. Merlin blocks are so rigid they actually make more power over the competition's by not flexing and throwing the reciprocating assemblies out of alignment When the cheaper block flexes the reciprocating assemblies have to also flex, but as they are moving cycle after cycle. The crankshaft sometimes cracks, sometimes spins main bearings or sometimes its piston to connecting rod damage, The moving mass always takes the toll. Be safe with your racing investment, get a Merlin Superblock right off the bat and forget about block flex.

						

Part# Description                      Cam Location	       *Price
8110  Merlin II    9.800" Deck Height    Std Cam          From Call
8111  Merlin II   10.200" Deck Height    Std Cam          From Call
8011  Merlin Race 10.200" Deck Height    Std  Cam         From Call
8013  Merlin BM   10.200" Deck Height    Raised Cam-Prep  From Call 
Merlin 2 Now Available With Splayed Caps and Finish Prepped Wash & Assemble
Rodeck, JP-1, Donovan, Trick Flow and other Blocks are available, but not normally stocked
LaPouttre Racing Heads / Engines does repair cylinder sleeves  and aluminum blocks, call for service and pricing

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Block Filler

Hard Block  Water Jacket Filler

HARD BLOK WATER JACKET FILLER is a specially formulated, cement-based product with refined, size-graded iron particles combined at an optimum ratio to provide maximum strength, vibration dampening, and heat dissipation required in high performance race engines. Its coefficient of thermal expansion is identical to cast iron engine blocks. Product has been tested and proven effective in aluminum blocks. * Remains stable at all operating temperatures. Does not soften when exposed to high heat, nor erode under water. * Fills the smallest spaces in the water jacket. Does not shrink or pull away from the cylinder walls. Does not expand. * Extends cylinder wall life both by preventing cracked walls and by causing the walls to wear truer. Honing is minimized during rebuilds. * A race-proven advantage used by winners in all types of racing since 1986. * Non-hazardous and non-corrosive. Contains no toxic material. Once hard, it cannot be removed from the block. NOTES: Block castings are not precise. One side may vary from the other. Variance between blocks can be considerable. H & H is not responsible for this variance. One TALL FILL Unit will fill most big blocks to the bottom of the water pump connection. In certain tall deck blocks, the fill level may be an inch or so lower. This level is adequate to stiffen the cylinder walls. Order the TALL FILL Unit for 350 cubic inch and larger blocks. Order the SHORT FILL Unit for circle track and street rod applications. Detailed instructions and contingency decals are shipped in each unit. To avoid coolant flow restrictions, check flow requirements and the pattern of your particular block before filling. HARD BLOK becomes permanent and cannot be removed after hardening. H & H Specialties, Inc. cannot be responsible for any coolant flow blockage or overheating problems caused by installation of water jacket filler. WARRANTY: No warranty is stated nor implied due to operating extremes in race engines and manufacturer's inability to control installation. Manufacturer is not responsible for any cooling problems that may result from filling water jackets. User is responsible for determining suitability of product for intended use. All risk and liability connected with use of the product is assumed by user. .

Part#       Description                         Price

860228	Tall Fill Unit (two 14Lb Bags)            call
860212	Short Fill Unit (Two 6 1/4 Lb. Bags)      call

NOTES:

 

Block castings are not precise. One side may vary from the other. Variance between blocks can be considerable.H & H is not responsible for this variance. One TALL FILL Unit will fill most big blocks to the bottom of the water pump connection. In certain tall deck blocks, the fill level may be an inch or so lower. This level is adequate to stiffen the cylinder walls. Order the TALL FILL Unit for 350 cubic inch and larger blocks. Order the SHORT FILL Unit for circle track and street rod applications. Detailed instructions and contingency decals are shipped in each unit. To avoid coolant flow restrictions, check flow requirements and the pattern of your particular block before filling.HARD BLOK becomes permanent and cannot be removed after hardening. H & H Specialties, Inc. LaPouttre Racing Heads/Engines and On Line Performance Parts Cannot be responsible for any coolant flow blockage or overheating problems caused by installation of water jacket filler.

WARRANTY:

No warranty is stated nor implied due to operating extremes in race engines and manufacturer's inability to control installation. Manufacturer is not responsible for any cooling problems that may result from filling water jackets. User is responsible for determining suitability of product for intended use. All risk and liability connected with use of the product is assumed by user.

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Chevy Bow Tie Cast Iron Blocks

BBC Mark IV Short Deck// Not Available any more!!

BBC Mark IV Tall Deck

SBC 4 Bolt w/Lifter Bushings

SBC 4 Bolt w/Nodular Caps

SBC 4 Bolt w/CNC Billet Caps

SBC 2 Bolt

Bow Tie Aluminum also Available through special order, but if you have the extra money, it is wiser to go to a Merlin Block

Check out the main caps page for retrofitting 2 bolt blocks to 4 bolt and information on other high performance billet caps to enhance your stock block

LaPouttre Racing Heads / Engines

Onlineperformanceparts.com
Performancepartsonline.com
Racingengines.com

108 Braddock St.
Bay City, MI. 48708    1-989-893-5028 Orders/Tech Line    

Sales@racingengines.com