Carrillo 5.4 4340 PRO-H Connecting Rod Set
Since 1963, Carrillo is recognized as the preeminent custom connecting rod manufacturer in the world. Carrillo has provided custom and prototype connecting rods to virtually every major automotive and motorcycle venue, most notably to the high performance and speed equipment industry. Whether it is a development engine or a modified existing engine, when nothing but the finest, most accurate, proven part is needed, Carrillo has earned the reputation of simply being the best.
Carrillo has been working to improve the availability of our products to the entire motorsports industry. In an effort to allow more access to Carrillo’s unsurpassed attention to detail, exceptional processing, and proprietary materials, we increased our standard stocking inventory of parts.
In addition to our well known H beam connecting rod, we offer an A beam configuration as well. The A beam configuration is available in a Pro-A, Pro-A-Ltd and Pro-Super A (SA) and Heavy Duty configurations.
Typically, the Pro-A beam configuration is well suited for less demanding, more economical, high-performance, aftermarket applications. Pro-A-Ltd connecting rods are designed for limited and restricted motor applications. And the Carrillo Pro-Super-A (SA) bridges the gap between the Pro-H and Pro-A applications.
All versions of Pro-H and A are stocking parts, which are limited to the more popular dimensions and part numbers. To decide which beam type is best suited for your application, please call our Technical Sales staff. Together we can build a rod that is best suited for your application and needs.
Carrillo uses proprietary chrome, nickel, moly, vanadium alloy which meets all VAR (vacuum arc re-melt ASTM standards). The heat is validated, both by the supplier and an independent metallurgist whom confirm the desired physical and chemical properties of steel.
All heat treat processes are via a mar-aged operation, resulting in UTS of 195,000 with a yield of 182,000 while maintaining the critical elements of low notch-sensitivity and ductility.
All Carrillo connecting rods are manufactured from an oversized forging resulting in the proper grainflow as well as the surface removal of any potential inclusions or surface conversions generated by the forging process. All critical CNC machines at Carrillo are equipped with probing to accurately validate dimensional integrity. In the production process each part is magnafluxed at least twice, further each piece is Rockwell tested to validate the heat treat procedure. A final shotpeen operation completes the part.
|
Cylinders |
Rod Style |
Carrillo Part Number |
Bolt Type |
Length |
Pin End Width |
Big End Width |
Housing Bore |
Pin Size |
Gram Weights
Tot/BE/PE |
|
8 |
PRO-H
|
F-5.4>-66657S
|
3/8 CARR
|
6.657
|
0.900
|
0.938
|
2.2394
|
22mm
|
652 / 451 / 201
|
|
8
|
PRO-H
|
F-5.4>-66657H
|
3/8 WMC
|
6.657
|
0.900
|
0.938
|
2.2394
|
22mm
|
647 / 446 / 201
|
|
8
|
PRO-SA
|
F-5.4<SA-66657H
|
3/8 WMC
|
6.657
|
0.900
|
0.938
|
2.2394
|
22mm
|
|
|
8
|
PRO-A
|
F-5.4-1<A-66657H
|
3/8 WMC
|
6.657
|
0.900
|
0.938
|
2.2394
|
22mm
|
|
