Engine Blocks & Parts | Summit Racing

Chevrolet Performance Bowtie Big Block Chevy Cast Iron Engine Blocks

Chevrolet Performance Bowtie big block Chevy cast iron engine blocks are CNC-machined. The race-prepared blocks feature blind head and accessory mounting bolt holes, a deck configuration that enables the use of any big block Chevy cylinder head—and cylinder bores that may be safely bored to a 4.600 in. maximum diameter, while maintaining a .250 in. minimum cylinder wall thickness. These engine blocks differ from the production-machined Bowtie versions in certain areas; they start from raw castings and are not "conversions." They also use a rear seal adapter to convert the Gen V/VI one-piece rear main seal to a Mark IV type 2-piece seal that facilitates the use of a widely available Mark IV style crankshaft. The intermediate caps also feature 16 splayed outer bolts, which anchor the caps into the strongest section of the blocks and prevent bearing cap movement under high loads. The main oil gallery on these blocks is relocated and enlarged to a 9/16 in. diameter to allow increased oil flow through the block. These Bowtie blocks have inner head bolt bosses, which allow for better retention of the cylinder heads in high-horsepower applications when the cylinder heads "lift" from the blocks due to high cylinder pressures. Order the style and deck height preferred for your application.

4.83 out of 5 stars ( 6 )

$4,140.75

Summit Racing™ SPC Engine Blocks

Summit Racing™ SPC Engine Blocks are aftermarket V8 Engine Blocks made for "Street, Performance, or Competition." These new clean sheet designed aftermarket blocks are cast in a modern state-of-the-art German foundry on brand new molds and machined in USA on modern high-speed machining centers that can hold the tightest of tolerances. Why start your engine build with a dirty, old, worn-out production block that needs hundreds or thousands of dollars of machine work--when you can start with a new heavy-duty casting full of high-performance features. We ship these blocks mostly finished but leave the cylinder bore .005" undersize, your machine shop will have to hone them for proper size. You can rest assured that you have a great foundation for your engine build. Check out the features below! Additional details: • Available Versions Include: GM Small Block, GM LS, GM Big Block (coming Soon,) Ford Windsor 5.0 and 351W • Cast in Germany at a Tier 1 OEM foundry • Made with class 35 Iron Alloy, Higher tensile strength and harder than competitors' class 30 • Machine-finished in USA on precision hi-speed machining centers- All dimensions are very accurate! • Priority main oiling systems & Siamese Cylinder bores • Blind head bolt holes • 4-bolt main caps, 180,00 PSI main bolts included

5.0 out of 5 stars ( 11 )

$3,399.99

COMP Cams Engine Finishing Kits

These COMP Cams engine finishing kits contain the often-forgotten components missing during final engine assembly. They include parts like Woodruff keys, cylinder head alignment dowels, cam bolts, timing cover dowels, and oil pump dowels. Available for small and big block Chevrolet and small block Ford engines, the COMP Cams engine finishing kits make engine assembly easy.

4.73 out of 5 stars ( 66 )

$18.95

—

$54.95

World Products PBM Performance Block Kits

World Products PBM Performance block kits are a great way to begin your next engine build. These kits contain accessory parts like freeze plugs, cam plugs, oil galley plugs, cylinder head dowels, timing cover dowels, and bellhousing dowels. With all the little parts assembled for you, it's time to get started! Kits are available for small block Ford or big block Chevy engine applications.

3.25 out of 5 stars ( 4 )

$30.67

Pioneer Cylinder Head Dowel Pins

Pioneer offers quality new cylinder head dowel pins at an affordable price. These dowel pins are great to have on hand when you do machine work on your block. Pioneer cylinder head dowel pins are made with first-rate materials and are available in a choice of sizes for accurate cylinder head alignment.

4.81 out of 5 stars ( 57 )

$10.99

—

$49.99

ACDelco Cylinder Head Pins

ACDelco cylinder head pins offer accurate alignment. The precise positioning of your cylinder heads prevents leaks and keeps your engine running efficiently. So, maintain the quality performance of your ride by utilizing cylinder head dowel pins from ACDelco in your build.

3.64 out of 5 stars ( 11 )

$3.99

Moroso Offset Cylinder Head Dowels

Moroso offset cylinder head dowels reposition the cylinder heads upwards on the block toward the lifter valley. This moves the valves away from the cylinder wall for improved intake flow.

4.0 out of 5 stars ( 2 )

$28.99

Engine Works Cylinder Head Dowel Pins

Engine Works cylinder head dowel pins ensure alignment between the cylinder head and block. These small cylindrical components are available in different quantities for small block, big block, and LS engines. Select the ones needed for your engine assembly.

Not Yet Reviewed

$6.19

Engine Works Engine Finishing Kits

Save time and money with Engine Works engine finishing kits. During an engine tear down and the cleaning process can lead to broken, bent, distorted, or lost service parts. These items can be troubling to any engine re-builder, especially when they are difficult to obtain. That is why Engine Works offers many of the hard-to-find OEM service parts you need in each engine hardware finishing kit. Available for small and big block Chevrolet and small block Ford engines, all hardware in each engine finishing kit is manufactured to precise OEM dimensions to make engine assembly easy.

Not Yet Reviewed

$38.71

Dura-Bond Engine Hardware Finishing Kits

The engine tear down and cleaning process can lead to broken, bent, distorted, or lost service parts. These items can be troubling to any engine re-builder, especially when they are difficult to obtain. That is why Dura-Bond offers many of the hard-to-find OEM service parts you need. All hardware is manufactured to precise OEM dimensions for exact fit.

4.55 out of 5 stars ( 75 )

$12.99

ARP High Performance Series Main Bolts

ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

4.86 out of 5 stars ( 177 )

$46.99

—

$77.99

Melling Freeze Plugs

Seal up the casting core holes in your engine block and heads with Melling freeze plugs. They're manufactured from a variety of quality materials—such as brass, steel, and stainless steel—and offered in different diameters and depths to fit your specific application. These expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. They are available for a wide range of makes and models, and can be ordered individually or in a multi-piece kit.

4.58 out of 5 stars ( 168 )

$19.99

—

$27.99

Milodon Main Bolt Kits

Milodon premium-grade bolts are forged from 8740 chromoly steel. They are ground and thread-rolled after heat-treatment to ensure exacting tolerances. These bolts feature a 1/2 in. hex head for greater socket clearance, a wide flange area under the head for greater load spread, and a black oxide finish.

Not Yet Reviewed

$234.95

On Sale

Mr. Gasket Cylinder Head Dowel Pins

Why reuse your old dowel pins when you have machine work done on your block? I can't think of a good reason, especially when these Mr. Gasket dowel pins are inexpensive and readily available. They are made from high quality steel, precision machined and case hardened for accurate cylinder head alignment.

3.75 out of 5 stars ( 4 )

$17.19

—

$20.29

$9.69

—

$11.44

Summit Racing™ Mockup Replica Blocks

Summit Racing™ Mockup Replica Blocks are light-weight and ship disassembled for ease of shipping and storage. The individual panels are easily assembled with tabs and slots for superior rigidity and accuracy compared to bolt-together types. Steel resists the heat from welding, so custom motor-mounts can be fabricated right on the block.

4.0 out of 5 stars ( 16 )

$299.99

PRW Main Cap Stud Kits

PRW main cap stud kits help eliminate main cap walk and also protect the threads in your engine block. The main cap studs work with the main caps to help strengthen the foundation for your next high horsepower build. These main cap fasteners come complete with hardened parallel-ground washers and quality hex-style nuts. Add confidence in the strength of your engine build when you use these PRW main cap stud kits.

3.5 out of 5 stars ( 6 )

$210.84

PRW Main Cap Side Bolts

PRW Main Cap Side Bolts uses premium grade Custom 4135 Steel rated at "aircraft" quality. Their side bolts are then specially heat-treated to 180,000 psi. This heat-treating procedure allows for total heat penetration which results in a stronger, more superior stud compared to lesser quality studs from other manufacturers. PRW main cap side bolts are then centerless ground after being heat treated and then thread rolled which assures better fatigue strength than having this process done before heat treatment. This manufacturing process may cost more to do but the results are well worth the extra effort.

Not Yet Reviewed

$25.98