306 - 331 - 347 Short Block - Street / Strip

306 - 331 - 347 Short Block -  Street / Strip
Part #: 306-331-347-Short-SS
Regular price: $2,995.00
On Sale: $2,575.00
EngineSize: 
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BBR Short Blocks are high performance Street & Strip engines. They provide an excellent level of reliability in a race environment.

BBR Short Blocks Include:

SPECIFICATIONS:
Block: Production Ford 5.0 Iron Hyd Roller Cam ready 1-Piece Rear Main Seal
Crankshaft: Nodular Iron Large Fillet (Prepped production crankshaft for 306)
Connecting Rods: Forged Polished I-Beams
Rod Bolts: 3/8" ARP 8740 Wav-Loc
Bearings:
-Cam: Seamless Tri-Metal
-Rod: Tri-Metal Main: Tri-Metal
Pistons: Forged pistons CNC double flycut Valve Relief: Inline and Twisted Wedge Compression Ratio: See chart Compression Chart
Wrist pins: Full-Floating .912" Steel
Rings: 1.5mm/1.5mm Moly 4mm SS50U Oil low drag ring package

Notes:
* Components rated at 550 Horsepower
* Fits most aftermarket cylinder heads br>

Compression Ratio
306
58.0cc --- (-3)10.00-(-13)8.87
61.0cc --- (-3)9.63 -(-13)8.59
64.0cc --- (-3)9.29 -(-13)8.32

331
58.0cc --- (-3)10.75-(-13)9.53-(-18)9.03
61.0cc --- (-3)10.35-(-13)9.22-(-18)8.75
64.0cc --- (-3)9.98 -(-13)9.03-(-18)8.58

347
58.0cc --- (-3)11.20-(-18)9.40
61.0cc --- (-3)10.78-(-13)9.11
64.0cc --- (-3)10.39-(-13)8.84

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