Engines, Blocks and Components
Circle Track Engines Blocks & Components at JJ Motorsports
Build or upgrade your circle track engine using durable blocks and precision components like deck plug kits and cylinder sleeves from JJ Motorsports. Designed for racing environments, these products are essential for a solid foundation, ensuring optimal performance and reliability in demanding IMCA, USMTS, and dirt oval conditions for late models, modifieds, and street stocks.
Shop trusted brands like Chevrolet Performance for LSX blocks, Dart for high-performance options, and Eagle for forged internals. Explore related categories such as Circle Track Engines, Complete for full assemblies or Circle Track Engines, Bare Blocks for foundational upgrades.
Top Circle Track Engines Blocks & Components
- Engine Dowel Pins GM SBC X Long Bell housing pins Motor plate Chevy Transmission – GM X-long Engine Dowel Pins 2" Long .620" OD. A must for any application running a mid-mount plate to ensure proper alignment of engine and transmission. Pair - 2 per package.
- Dressed 88869604 CT400 IMCA-Sealed 604 Chevy Crate Engine, Dynoed – Dressed version includes distributor, distributor clamp, spark plug wires, and fuel pump block off plate in addition to the GM supplied crate engine. IMCA sealed and approved for use in IMCA. Dyno-verified horsepower and torque and will include a...
- Chevrolet Performance Chevy Performance LSX Cast Iron Block - 4.185 Bore Finished 19417353 – Engine LSX Bare Block 4.185 in Bore 9.240 Deck 6-Bolt Main 1-Piece Seal 6-Bolt Head Iron Orange GM LS-Series Each. The LSX Bowtie Engine Block showcases three major...
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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- Qty in Cart
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- Price
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Dura Bond SBF Engine Hardware Finishing Kit FKF-1
DURA-BOND
$34.99A complete engine finishing kit is essential for any serious Small Block Ford build—it ensures every fastener, clip, and bracket meets OEM specifications while maintaining the durability and reliability your engine demands. Whether you're assembling a...DURFKF-1- SKU:
- DURFKF-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- FKF-1
$34.99 -
Dura Bond GM LS Engine Hardware Finishing Kit 01-13 FKC-7B
DURA-BOND
$30.99When you're assembling or rebuilding an LS engine, the fasteners and small components matter just as much as the big-ticket parts. Dura Bond's GM LS Engine Hardware Finishing Kit delivers OEM-spec hardware in one complete package, eliminating the...DURFKC-7B- SKU:
- DURFKC-7B
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- FKC-7B
$30.99 -
Dura Bond GM LS Engine Hardware Finishing Kit 98-00 FKC-6B
DURA-BOND
$27.99A complete engine rebuild demands precision hardware—and OEM-spec fasteners are non-negotiable when reassembling your LS platform. The Dura Bond GM LS Engine Hardware Finishing Kit consolidates the critical fasteners you'll need for camshaft thrust plate...DURFKC-6B- SKU:
- DURFKC-6B
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- MFG Part #:
- FKC-6B
$27.99 -
Dura Bond SBC HP Engine Hardware Finishing Kit FKC-1HP
DURA-BOND
$19.99Building a high-performance Small Block Chevy requires attention to every detail—and that starts with quality engine hardware. The Dura Bond SBC HP Engine Hardware Finishing Kit consolidates the critical fasteners and components you need to assemble your...DURFKC-1HP- SKU:
- DURFKC-1HP
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- MFG Part #:
- FKC-1HP
$19.99 -
Dura Bond SBC Engine Hardware Finishing Kit FKC-1A
DURA-BOND
$20.99A complete engine finishing kit addresses the critical details that separate a clean rebuild from a professional one. When you're investing time and money into a Small Block Chevy build, hardware quality directly impacts both longevity and appearance...DURFKC-1A- SKU:
- DURFKC-1A
- Availability:
- Ships Same Business Day
- Weight:
- 0.43 LBS
- MFG Part #:
- FKC-1A
$20.99 -
Dura Bond SBC Engine Hardware Finishing Kit FKC-1
DURA-BOND
$9.99A complete Small Block Chevy engine build requires attention to every detail—and hardware finishing is where precision matters. The Dura Bond FKC-1 consolidates all the fasteners, clips, and brackets you need into one kit, eliminating the hassle of...DURFKC-1- SKU:
- DURFKC-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MFG Part #:
- FKC-1
$9.99 -
Dura Bond Dowel Pin - Solid Chevy V8 Crank .4386 x.813 AD-679
DURA-BOND
$5.99A precision crankshaft dowel pin is fundamental to maintaining proper crank alignment and preventing catastrophic engine failure under high RPM and boost conditions. The Dura Bond AD-679 is engineered as a solid, one-piece design that eliminates the risk...DURAD-679- SKU:
- DURAD-679
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- AD-679
$5.99 -
Dura Bond GM Dowel Pin AD-023
DURA-BOND
$5.09Proper bellhousing alignment is critical to maintaining concentricity between your engine and transmission—even a slight misalignment can cause vibration, premature wear, and catastrophic failure under racing loads. The Dura Bond GM Dowel Pin AD-023 is a...DURAD-023- SKU:
- DURAD-023
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- AD-023
$5.09 -
Dart SBC/SBF Rear Cam Plug 32510000
DART
$1.19A quality rear cam plug is essential for sealing your small block engine properly—it prevents oil leakage and maintains system integrity during high-rpm operation. This Dart plug delivers reliable performance with proven steel construction and zinc oxide...DRT32510000- SKU:
- DRT32510000
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 32510000
$1.19 -
Dart SHP LS Next Block Parts Kit 32000018
DART
$185.86If you're building a high-performance LS engine, the foundation matters as much as the power adder. The Dart SHP LS Next Block Parts Kit supplies the critical hardware and precision components needed to assemble a reliable, durable engine block without...DRT32000018- SKU:
- DRT32000018
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MFG Part #:
- 32000018
$185.86 -
Dart LS Next Block Parts Kit 32000016
DART
$172.88Building a high-performance LS engine requires precision components that can withstand extreme combustion pressures and thermal cycling. The Dart LS Next Block Parts Kit delivers OEM-quality hardware and premium materials specifically engineered for...DRT32000016- SKU:
- DRT32000016
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- MFG Part #:
- 32000016
$172.88 -
Dart SBC SHP Block Parts Kit 32000013
DART
$124.89Building a Small Block Chevy from the ground up demands precision components that can handle sustained performance demands. The Dart SBC SHP Block Parts Kit eliminates the guesswork of sourcing individual hardware, providing factory-quality engine block...DRT32000013- SKU:
- DRT32000013
- Availability:
- Ships Same Business Day
- Weight:
- 2.07 LBS
- MFG Part #:
- 32000013
$124.89 -
Dart SBF Block Parts Kit Iron Eagle Blocks 32000003
DART
$117.86Building a Small Block Ford engine from the ground up demands precision components that won't compromise your build's reliability or performance. The Dart SBF Block Parts Kit consolidates the essential hardware and wear items you'll need, eliminating the...DRT32000003- SKU:
- DRT32000003
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- MFG Part #:
- 32000003
$117.86 -
Dart SBC Little M Block Parts Kit 32000001
DART
$122.13Building a solid foundation for your small-block Chevy starts with quality engine block hardware—and this Dart SBC Little M Block Parts Kit gives you the precision components needed for a reliable, long-lasting build. Whether you're assembling a street...DRT32000001- SKU:
- DRT32000001
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- MFG Part #:
- 32000001
$122.13 -
Dart LS Iron Block - 9.240/ 4.125 w/Steel Main Caps 31837211
DART
$4,499.99The LS platform dominates performance builds, but factory design compromises—particularly windage loss and oil control in separated crankcase bays—leave power on the table. Dart's LS Next Iron block solves these fundamental issues with a clean-sheet...DRT31837211- SKU:
- DRT31837211
- Availability:
- Ships Same Business Day
- Weight:
- 238.00 LBS
- MFG Part #:
- 31837211
$4,499.99 -
Dart SBC Pro SHP Iron Block 9.025 4.125/400 31162212
DART
$3,799.99The Dart SBC Pro SHP Iron Block delivers the precision engineering and durability demanded by serious engine builders and high-performance racers. Built with a robust 400 main bearing platform and a proven iron construction, this block handles aggressive...DRT31162212- SKU:
- DRT31162212
- Availability:
- Ships Same Business Day
- Weight:
- 186.00 LBS
- MFG Part #:
- 31162212
$3,799.99Qty in Cart: 0Quantity:Price:$3,799.99Subtotal: -
Comp Cams Engine Plug Kit - GM LS Series 251
COMP CAMS
$49.95Engine freeze plugs are critical wear items that protect your LS engine block from catastrophic damage caused by coolant freezing or pressure buildup. This OEM-quality Comp Cams kit delivers all the freeze plugs needed for a complete engine rebuild or...COM251- SKU:
- COM251
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MFG Part #:
- 251
$49.95Qty in Cart: 0Quantity:Price:$49.95Subtotal: -
Canton Ford 351W Main Cap Support 21-062
CANTON
$479.00A reinforced main cap girdle is essential for any serious 351W build—it eliminates flex in the crankshaft support structure and dramatically improves engine stability under load. Whether you're running high boost or pushing RPM limits, this Canton...CAN21-062- SKU:
- CAN21-062
- Availability:
- Ships Same Business Day
- Weight:
- 11.49 LBS
- MFG Part #:
- 21-062
$479.00 -
Canton Ford 289-302 Main Cap Girdle Kit 21-060
CANTON
$369.00A main cap girdle is essential for protecting your small block Ford's crankshaft under high-load racing conditions. By reinforcing the main bearing caps, this kit significantly reduces flex and deflection, which translates to improved power transfer and...CAN21-060- SKU:
- CAN21-060
- Availability:
- Ships Same Business Day
- Weight:
- 9.60 LBS
- MFG Part #:
- 21-060
$369.00 -
Allstar Performance Replacement P-Bolt with Nut for Rear Main Seal Adapter ALL99135
ALLSTAR PERFORMANCE
$35.99If you're running an Allstar Performance Rear Main Seal Adapter, you need a replacement P-Bolt and nut kit that matches the precision and durability of your engine setup. This steel fastener assembly with black oxide finish resists corrosion while...ALL99135- SKU:
- ALL99135
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- ALL99135
$35.99Qty in Cart: 0Quantity:Price:$35.99Subtotal:
