Chevy BBC 454 Head Build Kit - Mechanical Flat Tappet

Speedmaster cylinder head valvetrain kits offer a comprehensive solution for revitalizing your engine's cylinder heads. These kits are expertly crafted to restore optimal performance and are tailored to match specific cylinder head configurations and camshaft profiles, ensuring a perfect fit and maximum efficiency. Whether you're overhauling an engine or looking to upgrade your vehicle's performance, these valvetrain kits provide all the necessary components for a complete and reliable rebuild.

Brand:	Speedmaster
Part Number:	1-250-007-01
Part Type:	Cylinder Head Valvetrain Kit
Intake Valves Included:	Yes
Intake Valve Diameter (in):	2.250 in.
Exhaust Valves Included:	Yes
Exhaust Valve Diameter (in):	1.880 in.
Valve Material:	Stainless Steel
Valve Length (in):	5.494 in.
Valve Stem Diameter (in):	11/32 in. (0.344 in.)
Undercut Valve Stems:	Yes
Swirl-Polished Valves:	Yes
Valve Springs Included:	Yes
Valve Spring Type:	Single
Valve Spring Style:	Standard
Valve Spring Outside Diameter (in):	1.550 in.
Valve Spring Seat Pressure:	135 lbs @ 1.900 in.
Valve Spring Coil Bind Height (in):	1.125 in.
Damper Spring Included:	Yes
Retainers Included:	Yes
Retainer Material:	Chromoly Steel
Retainer Lock Angle:	10 Degree
Valve Locks Included:	Yes
Valve Lock Material:	Chromoly Steel
Valve Lock Style:	10 Degree
Lock Groove Style:	Single Groove
Valve Stem Seals Included:	Yes
Valve Stem Seal Type:	Positive Stop
Valve Stem Seal Material:	Viton
Valve Guide Diameter (in):	0.530 in.
Quantity:	Sold as a kit.
Notes: