Dart Race Series 4.5 Bore Spacing Aluminum Small Block Chevy Blocks
The Race Series Aluminum block features cylinder bores which have been spread to 4.500 in. from the standard 4.400 in. center to center dimension This allows larger bore diameters while maintaining adequate cylinder wall thickness and gasket sealing surface between bores
The Race Series Aluminum block features cylinder bores which have been spread to 4.500 in. from the standard 4.400 in. center to center dimension This allows larger bore diameters while maintaining adequate cylinder wall thickness and gasket sealing surface between bores
- Premium alloy: Dart Aluminum blocks are cast from proprietary RMR cast Aluminum alloy for superior strength
- Rear external oil inlets, with crossovers and restrictor provisions located centrally in the valley
- Parts kit included
- 4.500 bore spacing allows bore sizes up to 4.250
- Standard 17 head bolt pattern or optional 19 bolt pattern available
- Deck heights of 8.850, 9.025, 9.075 and tall deck 9.325 & 9.500 versions allow greater versatility for preferred rod ratio and angle
- Raised camshaft .391 (4.912 camshaft-to-crankshaft centerlines) Option for .434 raised cam aLS2o available
- Requires use of remote oil filter. No provision for block mounted filters
- Relocated oil pan raiLS2 are spread .400 per side (.800 wider than stock) to increase crank/rod clearance and reduce windage losses
- Big block camshaft bearings allow the use of cams with larger base circle diameter to improve strength and reduce twisting with cam-driven pumps
Information:
Dart Race Series 4.5 Bore Spacing Aluminum Small Block Chevy Blocks| Attributes | |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Camshaft Lifter Bore | 0.824 |
| Camshaft Location | Raised 0.391 IN |
| Category | Engine Blocks and Accessories |
| Category Hierarchy | Blocks>Small Block Chevy>Race Series Aluminum 4.500" Blocks |
| Country of Origin (Primary) | US |
| Cylinder Bore Diameter | 4.180 |
| Deck Height | 9.325 |
| EBAY Category ID | 33613 |
| Emission Code | Legal US |
| Engine | Small Block |
| Engine - Web | Small Block |
| Engine Block Material | RMR Cast Aluminum Alloy |
| Engine Block Series | Race Series |
| Engine Block Weight | 105 |
| Engine Type | ICE |
| Freeze Plug Type | Screw-in |
| Hazardous Material Code | N |
| Industry | Automotive |
| Life Cycle Status Code | Available to Order |
| Main Bearing Type | Chevrolet 400 |
| Main Cap Type | Steel |
| Make | Chevrolet |
| Make - Web | Chevrolet |
| Material | RMR Cast Aluminum Alloy |
| NAFTA Preference Criterion Code | B |
| Product Type | Engine Block |
| Rear Main Seal | 2-Piece |
| Rear Main Seal Type | 2-Piece |
| SDR Required Flag | N |
| Series | SBC Race Series Aluminum Engine Blocks |
| Subcategory | Engine Blocks |
| Title - Web | Race Series Chevy Small Block Aluminum Block - 4.180 in. Bore, 9.325 in. Deck |
| Warranty Time | 30 |
| GTIN | 00807051018806 |