Proform Chrysler SB&BB V8 Engines 66269 1977-buick-riviera-esi9922021 The EVO15070 was precisely tuned

The EVO15070 was precisely tuned and tested on our in-house dyno to replicate stock fueling while increasing horsepower and torque (when used with our EVO5007 or EVO5008 intake kits)

3 45mm Offset 73mm Bore Gold Wheel RX8

48% Less Restrictive Lowers EGT and soot output

compared to running a converter

Proform Chrysler SB&BB V8 Engines 66269 1977-buick-riviera-esi9922021 The EVO15070 was precisely tunedHigh torque, gear reduction design. 100% NEW, not rebuilt. The high torque, high output motor spins the engine over faster than stock starters, delivering more cranking power. 4. 41 to 1 sealed gear reduction drive and full ball bearing construction. Proform Chrysler SB&BB V8 Engines 66269 Specifications: Rotation Standard Compression Ratio 14 : 1 Make Chrysler Feature Benefit 4. 41 to 1 sealed gear reduction drive and full ball bearing construction.