TREperformance 5140 Machined Beam Rod

TREperformance Ultra Light Weight I Beam Connecting rod (to 750hp)

Please review our Ordering Information section before placing your order.

Our 306 Performance Short Block is designed for boosted applications looking for a strong piston and rod setup, but still utilizing the roller block and under 600hp at the crank (550 supercharged due to power to turn the supercharger). The oem rods with arp bolts are stronger than the block used in this application, so due to this fact we always recommend using a budget type I beam or factory rods with arp bolts unless a 4 bolt block is utilized. Don't hesitate to ask us about custom internal parts for your exact needs, wants, and application!

Block: .030 over TREperformance roller 302 block

Crank: TREperformance production crankshaft, thermal cleaned, shot-peened, Magna Fluxed, precision ground, oil scooped and chamfered

Rods: TREperformance 5140 Forged machined beam 5.09", arp bolts

Bearings: Clevite P rod and main

Pistons: Probe SRS 2618-t6 high alloy lightweight forged pistons, Flat top (9.64:1 w/60cc), dome top (11.35:1 w/60cc), or dished top (8.5:1 w/60cc), fits ALL inline heads and twisted wedge and twisted wedge R heads, very light and strong for high boost or nitrous setups with large valve reliefs for healthy camshafts

Rings: Speed Pro moly

306 Performance Short Block Options:

302 Based Short Blocks:

351 Based Short Blocks: