Kelford nokka-akseli, GM LS2/LS3 V8, 1-pulttinen nokkaratas

Kelford camshaft, GM LS2/LS3 V8, single-bolt cam gear

608,00 €

Kelford camshaft for the GM LS2/LS3 V8, single-bolt cam gear engine. Choose a profile to suit your engine parts and intended use. Profile specifications and required modifications are detailed below.

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SKU: 1-SS108 Category: Camshafts

Description
Additional information

Kelford camshaft, GM LS2/LS3 V8, single-bolt cam gear

Kelford is a New Zealand camshaft manufacturer with roots in Christchurch dating back to 1968. Its profiles range from upgrades for street-driven cars to fully built race engines. Choose the cam around the rest of the engine and its intended use, rather than simply picking the longest duration.

This selection is for the GM LS2/LS3 V8, single-bolt cam gear engine. Profile differences, spring recommendations and required modifications are detailed below.

Technical specifications – available profiles for this engine

Profile 1-SS108-A

A mild upgrade for a 6.0–6.2-litre LS with a single-bolt cam gear. Suitable for a daily-driven automatic car, with smooth idle and modest fuel consumption. Recommended springs: KVS1518.

Specification	Intake	Exhaust
Cam lift	0.338"	0.338"
Rocker ratio	1.7	1.7
Net valve lift	0.575"	0.575"
Advertised duration @ 0.006"	270°	276°
Duration @ 0.05" cam lift	222°	226°
Timing IVO @ 0.05" cam lift	1 ATDC	–
Timing IVC @ 0.05" cam lift	43 ABDC	–
Timing EVO @ 0.05" cam lift	–	49 BBDC
Timing EVC @ 0.05" cam lift	–	3 BTDC
Suggested centre lines	112°	116°
Cam lift at TDC	0.047"	0.042"

Manufacturer profile information

Profile 1-SS108-B

A stronger mid-level profile for a 6.0–6.2-litre LS with a single-bolt cam gear. Suitable for automatic or manual transmissions. Recommended springs: KVS1518.

Specification	Intake	Exhaust
Cam lift	0.353"	0.353"
Rocker ratio	1.7	1.7
Net valve lift	0.600"	0.600"
Advertised duration @ 0.006"	278°	286°
Duration @ 0.05" cam lift	230°	236°
Timing IVO @ 0.05" cam lift	4 BTDC	–
Timing IVC @ 0.05" cam lift	46 ABDC	–
Timing EVO @ 0.05" cam lift	–	53 BBDC
Timing EVC @ 0.05" cam lift	–	3 ATDC
Suggested centre lines	111°	115°
Cam lift at TDC	0.064"	0.059"

Manufacturer profile information

Profile 1-SS108-B-12

More overlap and mid-range pull for a 6.0–6.2-litre LS2/LS3 with a single-bolt cam gear. The narrow 112° lobe separation is intended to produce a rougher idle. Recommended springs: KVS1518.

Specification	Intake	Exhaust
Duration (checking height not stated)	230°	236°

Manufacturer profile information

Profile 1-SS108-C

For a supercharged 6.0–6.2-litre LS street car with a single-bolt cam gear. Uses relatively low overlap for forced induction. Recommended springs: KVS1518.

Specification	Intake	Exhaust
Cam lift	0.353"	0.353"
Rocker ratio	1.7	1.7
Net valve lift	0.600"	0.600"
Advertised duration @ 0.006"	276°	288°
Duration @ 0.05" cam lift	228°	238°
Timing IVO @ 0.05" cam lift	1 ATDC	–
Timing IVC @ 0.05" cam lift	49 ABDC	–
Timing EVO @ 0.05" cam lift	–	56 BBDC
Timing EVC @ 0.05" cam lift	–	2 ATDC
Suggested centre lines	115°	117°
Cam lift at TDC	0.047"	0.057"

Manufacturer profile information

Profile 1-SS108-D

Mild upgrade for a 6.0–6.2-litre LS with either automatic or manual transmission. Retains a smooth idle and suits daily driving. Kelford recommends KVS1518 springs.

Specification	Intake	Exhaust
Cam lift	0.341"	0.341"
Rocker ratio	1.7	1.7
Net valve lift	0.580"	0.580"
Advertised duration @ 0.006"	274°	282°
Duration @ 0.05" cam lift	226°	232°
Timing IVO @ 0.05" cam lift	1 BTDC	–
Timing IVC @ 0.05" cam lift	45 ABDC	–
Timing EVO @ 0.05" cam lift	–	52 BBDC
Timing EVC @ 0.05" cam lift	–	0 TDC
Suggested centre lines	112°	116°
Cam lift at TDC	0.054"	0.052"

Manufacturer profile information

Profile 1-SS108-J

Profile focused on mid-range throttle response where usable pull matters more than the final few peak horsepower. Gives a noticeably lumpier idle. Recommended springs: KVS1518.

Specification	Intake	Exhaust
Cam lift	0.353"	0.353"
Rocker ratio	1.7	1.7
Net valve lift	0.600"	0.600"
Advertised duration @ 0.006"	274°	282°
Duration @ 0.05" cam lift	226°	232°
Timing IVO @ 0.05" cam lift	5 BTDC	–
Timing IVC @ 0.05" cam lift	41 ABDC	–
Timing EVO @ 0.05" cam lift	–	48 BBDC
Timing EVC @ 0.05" cam lift	–	4 ATDC
Suggested centre lines	108°	112°
Cam lift at TDC	0.069"	0.063"

Manufacturer profile information

Checking heights are shown with the duration figures. Net lift is the net valve movement specified by the manufacturer, while cam lift is listed separately. IVO/IVC denote intake valve opening/closing and EVO/EVC exhaust valve opening/closing. BTDC/ATDC mean before/after top dead centre, and BBDC/ABDC before/after bottom dead centre.

Installation and profile selection

Confirm the exact engine version, valvetrain design and the modifications required by the profile. Check cam timing and valve-to-piston clearance during installation. Springs, lifters and other supporting parts mentioned with a profile are not included unless the profile explicitly states that they come with the kit.

Confirm the single-bolt gear and trigger version. Account for L99 AFM/VVT and lifters. The LS2 or LS3 engine code alone does not confirm the mounting arrangement.

Examples of related vehicle applications

Chevrolet Corvette C6 LS3 (2008–2013)
Chevrolet Camaro SS LS3/L99 (2010–2015)
Pontiac G8 GXP LS3 (2009)
GM LS2/LS3 -builds, single-bolt cam gear

The list covers versions with the specified engines only. Exact fitment and required modifications depend on the selected profile, cylinder head, lifters and timing system.

Kelford Cams