Bullet Race Engineering SR20 Billet Block



Special order item, please contact us for current stock available.

SKU: BULLET_SR20DET Categories: ,


SR20DET Billet Block Bullet Race Engineering

World-beating billet engine blocks for circuit, strip and street. Light, strong, rigid and durable. Bullet’s range of billet engine blocks are changing the game. #CastAintFast

The Bullet SR20DET Billet Block to suit Nissan SR20 applications has been proven in World Time Attack applications including 2016 winner The MCA Hammerhead. In dry-deck drag racing applications it has been proven at outputs exceeding 1800hp.

This product has vastly improved block rigidity and improved deck thickness over the stock unit. Combined with increased head stud diameter this product delivers exceptional head sealing qualities. Distortion of cylinder bores and crank tunnel is dramatically reduced through design improvements and a Bullet 4 bolt main cap system. The standard cast alloy unit suffers from high distortion which is eliminated with the Bullet product.

The Bullet SR20 comes in 3 models, Wet or Dry Deck (open or closed deck) with water jackets & a Solid Drag only version.

So Street-Strip-Circuit-Bullet has you covered!

Bullet Race Engineering SR20DET Billet Block Specifications:

Name of product SR20 Billet Block (Nissan SR20 rear wheel drive applications)
Actual Weight 34kg
Block Material 6061 aircraft grade billet aluminium.
Design improvements 4 bolt mains, increased block deck and cylinder wall thickness. Performance sleeves fitted
Studs included ARP 8740 1/2” Head and 7/16” Main studs.
Modifications required to fit Remote Oil Filter, external oil pump & Electric Water pump
Modifications to head required Drill out head stud holes to 14mm
HP rating 1700*
Significant benefits Significantly increased rigidity and durability. May be bored to 90mm
Finish Raw machined
Options available Bullet Fire Ring Head Sealing System Wet or Dry Deck available
Stock block weight in comparison 31kg


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