Forged Street Small Block Chevy 377 Rotating Assembly, 5.7 Inch Rods

							                        

                                                        Clevite's H-Series was developed primarily for use in NASCAR type racing, but  they are suitable for all types of competition engines. These sets are  specifically for 1969-Up 302-305-327-350 S/B Chevy "Large Journal" engine (with 2.100" rod  journals).
Use H-series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. 
H-Series bearings should be used if contact patterns obtained with P-series  parts are too narrow. Contact pattern should ideally cover 2/3 to 3/4 of the  bearing surface. 
If you aren't sure which type of performance bearing to start with,  the H-Series will be your best choice.

H-Series Features (Link)
                                                    

						                        

							                        

                                                        
Speedway introduces forged rotating assemblies, with an optional balance job. Includes new 2-pc rear main seal crank, rods and pistons. Cranks are new so they use standard size bearings. All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs. 
All balancing is done with our state-of-the-art Hines balancer by race  mechanics with over 30 years of experience!  A kit purchased with the  optional balance job will ship in 24-48 hours. These rotating assembly engine rebuild kits  may require additional charges for heavy metal.
If you are going to run this crank in a sprint car motor, you must  have the crank flange turned down prior to balancing the crank to allow  it to go through the motor plate.
NOTE: Piston rings are not included and must be purchased separately. Use Style C rings.
Kits feature: 
Scat 4340 Forged Steel Crankshaft    
Standard size journals
Straight shot and chamfered oil holes
Nitride hardened and shot peened
Lightening holes in all rod throws
Large radius on all journals
KB Signature Series Forged Pistons 
2618 aluminum alloy construction
T-6 heat treated 
4.000" bore pistons available in standard, .030, .040, or .060 sizes
4.125" bore pistons available in .030 or .040 sizes
Speedway 4340 H-beam Connecting Rods
Full floating pin in silicon bronze bushing
Precision bolt bushings to positively locate cap
5.7" lengths
622 grams
Weight matched set of 8 rods
King HP Series Main & Rod Bearings
0.015" thick top layer for superior macro particle embedability and conformability
40 Vickers hardness to resist overlay migration and extrusion
450°F heat threshold for superior protection against friction and overheating
Mains are 3/4 grooved for improved oiling to the rod journals
Bi-metal aluminum silicon alloy featuring fine micro-bore finish
Chevy 350: 4.000" bore x 3.48" stroke
                                                    

						                        

							                        

                                                        
By using an 80,000 psi low friction, low porosity plasma moly top ring along with purpose build second and oil rings, we have the best rings for the buck on the market. You will make more horsepower over other brands using these rings due to the unique design and ring face finish. 20+ additional horsepower has been seen using these rings. File fit design. 
Top  1/16"
2nd  1/16"
Oil  3/16" 
Ring Style Chart (GIF)
                                                    

						                        

							                        

                                                        All balancing is done with our state-of-the-art "hines" balancer by race mechanics with over 30 years of experience. A kit purchased with the optional balance job will ship in 24-48 hours. 


                                                    

						                        

							                        

                                                        Place a piece of this thread on a rod or main journal, torque cap in place, remove cap and by using the included chart, you know what your bearing clearance is. You should have one of each when assembling your engine. 
                                                    
						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All  balancing is done with our state-of-the-art Hines balancer by race    mechanics with over 30 years of experience!  A kit purchased with the    optional balance job will ship in 24-48 hours.  
Rings and bearings not included. Journals are standard size. Due to larger journal side radius on this aftermarket crankshaft, you must use Clevite H-series, King bearings or equivalent.
NOTE: Piston rings are not included and must be purchased separately.
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.
NOTE: Piston rings are not included and must be purchased separately.
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.  Includes spacers for main bearings.
NOTE: Piston rings are not included and must be purchased separately.
 
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.
NOTE: Piston rings are not included and must be purchased separately.
 
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.
NOTE: Piston rings are not included and must be purchased separately.
 
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.
NOTE: Piston rings are not included and must be purchased separately.
 
 
                                                    

						                        

							                        

                                                        
These rotating assembly engine rebuild kits are designed for street  use and include Keith Black forged pistons, Scat 4340 Pro-Comp I-beam  rods and a Scat 4340 forged crankshaft.
All Scat 4340 cranks are 2-piece rear main seal, internally balanced and weigh approximately 51-55 lbs.
These assemblies will require balancing either by us or your machine shop.  All kits can be internally balanced. 
All   balancing is done with our state-of-the-art Hines balancer by race     mechanics with over 30 years of experience!  A kit purchased with the     optional balance job will ship in 24-48 hours.  
Rings and bearings not included.  Journals are standard size. Due to larger journal side radius on this  aftermarket crankshaft, you must use Clevite H-series, King bearings or  equivalent.
NOTE: Piston rings are not included and must be purchased separately.