Manley Steel
Connecting Rods for Small Block Chevy Engines
Manley Performance offers connecting rods in many
styles such as H beam, I beam, Sportsmaster, and 300M material steel connecting rods.
Manley is a primary manufacturer of racing 4340 forged steel and 300M connecting rods.
Manley offers several different styles of forged steel rods for the small block Chevy
engines. The available rods include the Sportsmaster, Tour Lite, Pro Series, I beam, H
beam, Light weight and Turbo Tuff designs. Manley rods feature exacting attention to
detail, accurate machining and high strength.
For pricing or to order any of these Manley
connecting rods, that do not have an "add to cart" button just enter the part number
from the below charts into the search box in the upper left of this page, preceded by
"man". For instance, man14050-8. Or, call or e-mail us, our contact info is at
the top right corner of each page on our website.
 Small Block Chevy
H-Beam Rods, Standard Weight Series
- Manufactured from 4340 forgings
- Heat treated, stress relieved, shot peened and 100% magnafluxed
- Weight matched sets + 1.5 grams
- Cap fasteners are premium 7/16" ARP 8740 or optional ARP 2000 cap screws
- Horsepower range for these rods is 750 H.P. at 8000 rpm
- Horsepower range is affected by many factors including rpm, stroke and piston weight.
|
| Length |
Journal Size |
Center-to Center |
Big End Bore |
Pin Bore |
Gram Weight |
Part # w/ ARP8740 |
Part # w/ ARP2000 |
| Stock |
Large |
5.700" |
2.225" |
.9281" |
630 |
14050-8 |
14050R-8 |
| .300" Longer |
Large |
6.000" |
2.225" |
.9281" |
640 |
14054-8 |
14054R-8 |
| .425" Longer |
Large |
6.125" |
2.225" |
.9281" |
664 |
14055-8 |
14055R-8 |
| .425" Longer |
Small |
6.125" |
2.125" |
.9281" |
642 |
14056-8 |
14056R-8 |
| .025" Longer LS-1 |
Large No Offset |
6.125" |
2.225" |
.9281" |
647 |
14051-8 |
14051R-8 |
| .025" Longer LS-1 |
Large No Offset |
6.125" |
2.225" |
.9457" |
643 |
14053-8 |
14053R-8 |
P/N 14051-8 and 14053-8 are for Small Block Chevy LS-1 engines with pistons ready to accept 6.125” length rods. Stock LS-1 rods are 6.100” long.
Note the pin bore on the 14051-8 is .9281”. Stock LS-1 pins are .945” diameter. |
 |
P/N 14050-8 is NHRA Legal for Stock & Super Stock.
P/N 14054-8 is NHRA Legal for Olds 307, 350, 403. |
Small Block Chevrolet
SPORTSMASTER I beam Connecting Rods
- Forged from aircraft quality 4340 material
-
Entire beam and cap area is profiled to remove stress risers and render the lightest
possible rod
-
Shot peened after machining and 100% magnaflux inspected
-
Cap fasteners are 3/8" ARP 8740 cap screws
-
Premium Ampco pin bushings
-
Horsepower range for these rods is 550 H.P. at 8000 rpm
- Horsepower range is affected by rpm, stroke and piston weight
|
 |
Manley
Small Block Chevrolet Sportsmaster Connecting Rod Sets |
| Length |
Journal Size |
Center to Center |
Big End Bore |
Pin Bore |
Weight |
Part No. |
| stock |
large |
5.700" |
2.225" |
.9281" |
555g |
man 14101C-8
|
| stock |
large |
5.700" |
2.225" |
.9281" |
555g |
man 14101-8
|
| stock |
large |
5.700" |
2.225" |
.8758" |
570g |
man 14104-8
|
| stock |
large |
5.700" |
2.225" |
press |
564g |
man 14112-8
|
| stock |
large |
5.700" |
2.225" |
press |
564g |
man 14112A-8
|
| .150" longer |
large |
5.850" |
2.225" |
.9281" |
573g |
man 14116-8
|
| .300" longer |
large |
6.000" |
2.225" |
.9281" |
578g |
man 14103-8
|
| .400" longer |
large |
6.100" |
2.225" |
.9281" |
593g |
man 14106-8
|
.400" longer
with stock 24 mm LS1 wrist pin - must use pistons with floating pins |
large |
6.100" |
2.225" |
.9457" |
592g |
man 14114-8
|
| .425" longer |
large |
6.125" |
2.225" |
.9281" |
595g |
man 14113-8
|
| stock |
small |
5.700" |
2.125" |
.9281" |
571g |
man 14105-8
|
| stock |
small |
5.700" |
2.125" |
.8758" |
579g |
man 14108-8
|
| stock |
small |
5.700" |
2.125" |
press |
568g |
man 14109-8
|
| stock |
small |
5.700" |
2.125" |
press |
568g |
man 14109A-8
|
| .300" longer |
small |
6.000" |
2.125" |
.9281" |
575g |
man 14107-8
|
P/N 14106-8 and 14114-8 have no offset on the crank journal, same
as the stock LS1 connecting rods. These are also referred to as being "on
center".
Common
Features |
| Attribute |
Dimension |
| crankpin small journal |
2.000" |
| crankpin large journal |
2.100" |
| big end width |
.940" |
| pin end width |
.980" |
|
P/N 14101C-8 is CASCAR Legal.P/Ns
14101-8, 14104-8, 14112-8, 14105-8, 14106-8, 14108-8, 14109-8 and 14114-8
are NHRA Legal for Stock & Super Stock.
P/Ns 14101-8, and 14104-8 are NHRA Legal for Stock
& Super Stock for Chevy 4.3 V6.
P/N 14103-8 is NHRA Legal for Stock & Super Stock
for Olds 307, 350, & 403.
P/Ns 14106-8 and 14114-8 are NHRA Legal for
Small Block Chevy LS1.
P/N 14116-8 is NHRA Legal for AMC 390 - 401.
P/Ns 14109A-8 and 14112A-8 are APBA Legal. |
|
