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Part Number:

CNC-1249-MR

CNC SB Chevy 415/421 Molnar Rotating Assembly - 12.0:1 Mahle Flat Top Pistons

SB Chevy, Molnar 4340 Forged Crankshaft 3.875 Stroke, 350 or 400 Main, 6.000 H Beam Rods, Mahle -5cc Flat Top Pistons, 2-PC Seal

$3,019.95

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⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Description

Molnar 4340 forged steel crankshaft, 2pc rear main seal
Molnar 4340 forged steel H beam connecting rods with ARP2000 rod bolts
Mahle forged -5cc Flat Top pistons
Performance file fit piston ring set
H series performance main and rod bearings
This kit is internal balanced in-house by cnc-motorsports

Compression Ratio with 58cc 12.9:1
Compression Ratio with 64cc 12.0:1
Compression Ratio with 72cc 11.2:1

Specifications

More Information
CNC Part Number	CNC-1249-MR
Price	$3,019.95
Manufacturer's Part Number	1249-MR
Brands	Mahle, Molnar
Part Types	Engine Rotating Assembly Kit
Departments	Parts
Vehicle Make	SB Chevy
Balanced Assembly	No
Balance Type	Internal
Crankshaft Material	4340 Forged Steel
Crankshaft Stroke	3.875
Piston Brand	Mahle
Piston Type	Flat Top
Rod Length	6.000
Rear Main Seal	2 Piece
Piston Material	4032 Forged
Custom Notices	⚠ PROP 65 WARNING