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Big Block Chevy - 396, 402, 427, 454 & 502

"SIR" I-Beam Connecting Rods Eagle's "SIR" I-Beam Rods are an economically priced alternative to the time and expense involved in reworking OE Connecting Rods. "SIR" Connecting Rods are forged from 5140 steel and most are available in both press fit or bushed for floating pins. Critical big end sizing is controlled using in-house CNC equipment. "SIR" Connecting Rods offer up to 50% increase in strength over stock connecting rods.

Part # Length Pin Notes/Options Price Chevy Big Block SIR6135P 6.135" press fit stock 396, 454 length  $259 SIR6135B 6.135" bushed pin stock 396, 454 length $279 SIR6385B 6.385" bushed pin - $279

"ESP" H-Beam Connecting Rods The difference you can't see! All "ESP" Rods are manufactured from a Two-Piece forging. The forging process forces the grain into the shape of a connecting rods, resulting in a superior fatigue life. The rod cap is forged separately so that the grain runs perpendicular to the load forces, which strengthens the rod. Many aftermarket rods are manufactured from 4340 steel. 4340 specs allow a range of different materials to achieve the desired results. Although it is a more expensive process, all "ESP" 3-D Rods also include higher content of nickel and chrome, which increases the strength and fatigue life without making the rod brittle. Extensive testing has proven our two-piece forging superior to any one-piece forging on the market!

Part # Length Notes/Options Price w/ARP 2000 Bolts w/ARP L19 Bolts Chevy Big Block 396, 402, 427, 454, 502 2.200" crank pin /.990" piston pin /.990" b.e. width CRS61353D 6.135" stock length 396, 427, 454, 502 $379 $465 $465 CRS63853D 6.385" +.250 $379 $465 $465 CRS65353D 6.535" +.400 $379 $465 $465 CRS66353D 6.635" +.500 $379 - - CRS67003D 6.700" +.565 $379 - $465 CRS68003D 6.800" +.665 $379 $465 $465 CRS7100C3D 7.100" 1.007" big end width $645 - -

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