1998-2002 LS1 F-Body Rotating Assemblies

Lunati is the leader in LS1 and LS6 rotating assemblies, offering 14 kits that are readily available! Lunati was the first on the market with the LS series when the first C5 rolled off the assembly line. The Lunati engine assemblies are made with the finest Lunati engine components, including a Lunati Pro-Series crankshaft, Lunati Pro-Billet connecting rods, Lunati forged pistons, rings, bearings, and piston pins. For applications where pump gasoline is used, we have found that a static 10.6 CR is the limit to stay out of detonation.

If a turbo or blower is to be used, we recommend 8.5 CR with pump gas. For racing and race fuel you can move to 12.5 CR for maximum performance. The pistons and rings come in 0.005" oversize to accommodate honing to clean up the cylinders. The top ring is a 1.5 mm moly plasma pre gapped ring, second ring is 1.5 mm cast-iron reverse-twist, and the oil ring is 3 mm three-piece. The assembly is internally balanced and the reluctor ring is installed. All this, and with your choice of up to 408 cubic inches! It doesn't get any better.

Note: All calculated specs were figured using a .008" out of the block deck, 9.240" block height, and 67cc cylinder heads

Callies Compstar Speed Packs are high quality rotating assemblies, for most popular applications, at a value price.  Each Speed Pack is shipped fully balanced and ready for use.  Callies includes only proven "brand name" components to ensure a consistent and reliable outcome for your project.  Flat top or inverted dome versions with Mahle Power Pac Pistons and bearings provide excellent power and durability. 
A Diamond Piston upgrade is available upon request for nitrous and other forced induction applications.  Please call or email us.


With each Speed Pack you get the following:

• Compstar Crankshaft - Your choice of stroke and reluctor wheel (all are 24x reluctor, specify in order notes if 58x reluctor is required)
• Compstar Connecting rods - ARP2000 Rod bolts and stroker clearanced
• Mahle Pistons - Your choice in flat top or dish pistons 
• Mahle - File Fit Plasma Moly performance 1.5mm - 1.5mm - 3.0mm
• Main and rod bearings included
• If you don't see your application listed call or email us

Manley rotating assemblies are high quality rotating assemblies for racers at a value price. Manley includes only proven "brand name" components to ensure a consistent and reliable outcome for your project.  Flat top or inverted dome versions with Manley Platinum Series Pistons and bearings provide excellent power and durability. 
A Diamond Piston upgrade is available upon request for nitrous and other forced induction applications.  Please call or email us.


With each Rotating Assembly you get the following:

• Manley Crankshaft of Choice - Your choice of reluctor wheel(24 or 58x), and also Lightweight or Super Lightweight for those     looking for a little more 
• Manley Connecting rods - Your choice of H-Beam or I-Beam (I-Beams come standard w/ ARP 2000 Bolts)
• Manley Platinum Series Pistons - Your choice in flat top or dish pistons 
• Manley File Fit Plasma Moly performance 1.5mm - 1.5mm - 3.0mm
• Main and rod bearings included
• If you don't see your application listed call or email us
• Diamond Piston upgrade is available upon request

**** Some rotating assemblies may require balancing ****