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
- Quantity
- Price
- Subtotal
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Allstar Performance Bellhousing Dowel Pins Hollow ALL38152
ALLSTAR PERFORMANCE
$10.79Bellhousing Dowel Pins HollowBellhousing Dowel PinHollow1.575 in Long0.625 in DiameterGMPairALL38152- SKU:
- ALL38152
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- ALL38152
$10.79 -
Allstar Performance Bellhousing Dowel Pins ALL38150
ALLSTAR PERFORMANCE
$9.99Bellhousing Dowel Pins Bellhousing Dowel Pin2 in Long0.625 in DiameterGMPairALL38150- SKU:
- ALL38150
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- ALL38150
$9.99 -
Allstar Performance Rear Main Seal Adapter 86-up Pan ALL26126
ALLSTAR PERFORMANCE
$126.99Rear Main Seal Adapter 86-up PanRear Main Seal Adapter2 Piece Seal to 1 Piece SealSmall Block ChevyKitALL26126- SKU:
- ALL26126
- Availability:
- Ships Same Business Day
- Weight:
- 1.27 LBS
- MFG Part #:
- ALL26126
$126.99Qty in Cart: 0Quantity:Price:$126.99Subtotal: -
Allstar Performance Rear Main Seal Adapter Pre-86 Pan ALL26125
ALLSTAR PERFORMANCE
$188.99Rear Main Seal Adapter Pre-86 PanRear Main Seal Adapter1 Piece Block to 2 Piece Crank1955-86 PanBillet AluminumSmall Block ChevyKitALL26125- SKU:
- ALL26125
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- MFG Part #:
- ALL26125
$188.99 -
Chevrolet Performance Chevy Performance LSX Cast Iron Block - 4.065 Bore Finished 19417352
CHEVROLET PERFORMANCE
MSRP: $5,565.20$5,565.19Engine LSX Bare Block 4.065 in Bore 9.240 Deck 6-Bolt Main 1-Piece Seal 6-Bolt Head Iron Orange GM LS-Series Each Chevrolet Performance LSX Bowtie engine blocks are designed for the advanced competition engine builder. They feature Siamese cylinder...GMP19417352- SKU:
- GMP19417352
- Availability:
- Ships Same Business Day
- Weight:
- 252.00 LBS
MSRP: $5,565.20$5,565.19 -
Chevrolet Performance Alm Engine Block - Bare 6.2L LSA 12673476
CHEVROLET PERFORMANCE
$3,812.04Engine6.2L LSABare Block4.065 in Bore9.240 in Deck1-Piece SealAluminumGM LS-SeriesEachGMP12673476- SKU:
- GMP12673476
- Availability:
- Ships Same Business Day
- Weight:
- 110.00 LBS
$3,812.04Qty in Cart: 0Quantity:Price:$3,812.04Subtotal: -
Eagle SBF 208/302 Rotating Assembly KIT14006030
EAGLE
$2,549.99Rotating Assembly331 CIDForged CrankForged Pistons3.250 in Stroke5.400 in H Beam RodsSmall Block FordKitEAG14006030- SKU:
- EAG14006030
- Availability:
- Ships Same Business Day
- Weight:
- 85.00 LBS
$2,549.99 -
Dart SBF SHP Iron Block 4.125 Bore 9.500 DH 31375235
DART
$2,699.99EngineSHPBare Block4.125 in Bore9.500 Deck1-Piece SealIronSmall Block FordEachDRT31375235- SKU:
- DRT31375235
- Availability:
- Ships Same Business Day
- Weight:
- 204.20 LBS
$2,699.99Qty in Cart: 0Quantity:Price:$2,699.99Subtotal: -
Dart SBF SHP Iron Block 4.125 Bore 8.200 DH 31374275
DART
$2,699.99EngineSHPBare Block4.125 in Bore8.200 Deck4-Bolt Main1-Piece SealIronSmall Block FordEachDRT31374275- SKU:
- DRT31374275
- Availability:
- Ships Same Business Day
- Weight:
- 150.00 LBS
$2,699.99Qty in Cart: 0Quantity:Price:$2,699.99Subtotal: -
Dart SBF SHP Iron Block 4.000 Bore 8.200 DH 31374175
DART
$2,699.99EngineSHPBare Block4 in Bore8.200 Deck4-Bolt Main1-Piece SealIronSmall Block FordEachDRT31374175- SKU:
- DRT31374175
- Availability:
- Ships Same Business Day
- Weight:
- 250.00 LBS
$2,699.99Qty in Cart: 0Quantity:Price:$2,699.99Subtotal: -
Dart SBC Little M Block 4.125 Bore 9.325 DH .391 RC 31182225
DART
$3,999.99EngineLittle MBare Block4.125 in Bore9.325 in Deck4-Bolt Main2-Piece Seal0.391 in Raised Cam LocationIronSmall Block ChevyEachDRT31182225- SKU:
- DRT31182225
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
Dart SBC Iron Little M Block 4.125 Bore 9.025 DH 31181215
DART
$3,999.99EngineLittle MBare Block4.125 in Bore9.025 in Deck4-Bolt Main2-Piece Seal0.391 in Raised Cam LocationIronSmall Block ChevyEachDRT31181215- SKU:
- DRT31181215
- Availability:
- Ships Same Business Day
- Weight:
- 210.00 LBS
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
LS Aluminum Block - 4.120 Bore 9.240 D/H 54903U
RACING HEAD SERVICE
$6,575.95EngineBare Block4.120 in Bore9.250 DeckStandard Main6-Bolt Mains1 Piece Seal6-Bolt HeadAluminumNaturalGM LS-SeriesEachRHS54903U- SKU:
- RHS54903U
- Availability:
- Ships Same Business Day
- Weight:
- 140.00 LBS
$6,575.95Qty in Cart: 0Quantity:Price:$6,575.95Subtotal: -
Eagle SBC Balanced Rotating Assembly Kit B13057E030
EAGLE
$1,769.99Rotating AssemblyStreet / Strip383 CIDCast CrankForged Pistons3.750 in Stroke4.030 in Bore6.000 in I Beam RodsSmall Block ChevyKitEAGB13057E030- SKU:
- EAGB13057E030
- Availability:
- Ships Same Business Day
- Weight:
- 105.00 LBS
$1,769.99 -
Dart LS SHP Pro Block 4.125 Bore 9.240 DH 31867212
DART
$4,699.99Engine SHP Bare Block 4.125 in Bore 9.240 Deck 4-Bolt 1 Piece Seal Iron GM LS-Series Each Dart Machinery continues the evolution of the LS Next platform by releasing the SHP LS Next PRO block! Designed for high performance applications, the SHP LS NEXT...DRT31867212- SKU:
- DRT31867212
- Availability:
- Ships Same Business Day
- Weight:
- 240.00 LBS
$4,699.99Qty in Cart: 0Quantity:Price:$4,699.99Subtotal: -
Dart SBC Little M Iron Block 9.025 4.125/350 31181211
DART
$3,999.99EngineLittle MBare Block4.125 in Bore9.025 Deck350 Main4-Bolt Main2 Piece SealIronSmall Block ChevyEachDRT31181211- SKU:
- DRT31181211
- Availability:
- Ships Same Business Day
- Weight:
- 255.00 LBS
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
Dart SBC Little M Iron Block 9.025 4.000/350 31181111
DART
$3,999.99Designed for optimal performance in small block Chevy applications Features a robust Little M design for enhanced durability Bare block configuration allows for custom builds Generous 4.000 in bore for increased airflow and power 9.025 deck height for...DRT31181111- SKU:
- DRT31181111
- Availability:
- Ships Same Business Day
- Weight:
- 180.00 LBS
$3,999.99Qty in Cart: 0Quantity:Price:$3,999.99Subtotal: -
Dart SBC SHP Iron Block - 9.025 4.000/350 31161111L
DART
$2,299.99EngineSHPBare Block4 in Bore9.025 Deck350 Main4-Bolt / 2-Bolt Main1 Piece SealIronSmall Block ChevyEachDRT31161111L- SKU:
- DRT31161111L
- Availability:
- Ships Same Business Day
- Weight:
- 215.00 LBS
$2,299.99Qty in Cart: 0Quantity:Price:$2,299.99Subtotal: -
Crate Engine - SBC 396 491HP Dressed Model BP3961CTC
BLUEPRINT ENGINES
$7,064.00Crate Engine Dressed Small Block Engine 396 Cubic Inch 491 HP Small Block Chevy Each This product is excluded from any discounts.BPEBP3961CTC- SKU:
- BPEBP3961CTC
- Availability:
- Ships Same Business Day
- Weight:
- 525.00 LBS
$7,064.00Qty in Cart: 0Quantity:Price:$7,064.00Subtotal: -
BluePrint Crate Engine - SBC 396 491HP Base Model BP3961CT
BLUEPRINT ENGINES
$7,649.00Crate Engine Base Small Block 396 Cubic Inch 491 HP Small Block Chevy Each HP & Torque: 491 HP / 509 FT LBS Compression Ratio: 10.4:1 Aluminum Heads Hydraulic Roller Cam Forged Crank Forged Pistons BLOCK: NEW BluePrint Cast Iron...BPEBP3961CT- SKU:
- BPEBP3961CT
- Availability:
- Ships Same Business Day
- Weight:
- 475.00 LBS
$7,649.00Qty in Cart: 0Quantity:Price:$7,649.00Subtotal:
