A long block is a short block with cylinder heads and camshafts installed. Cylinder head are Toyota castings that are stripped down bare, inspected, and measured for thickness. Heads that pass inspection are surfaced for a true mating surface to match up to the machined surface on the block.
• Cylinder head seats are inspected and replaced as needed
• Toyota valves are measured for trueness and inspected with passing valves given a 3 angle valve grind and lapped into the cylinder head
• New valve guides and seals are installed with all valves vacuum tested to ensure each will hold adequate pressure
• Camshafts are cleaned, measured and inspected with passing camshafts micro-polished smooth
• New cam buckets are installed with shims to obtain proper clearances
• Cylinder heads are installed to the block with new TTY head bolts tightened to factory specifications Toyota OEM head gaskets are the only head gasket we use. A surfaced head, surfaced block, OEM head gasket, and new TTY head bolts torqued to factory specs will guarantee the longest life possible out of your engine. Cutting corners will result in shorter engine life and premature head gasket failure. Toyotas 5VZ-FE 3.4L uses TTY head blots. TTY is Torque-To-Yield, meaning the head bolt stretches and is a onetime use head bolt.
The 5VZ-FE long block comes with a 2 year /24,000 mile warranty included. Engines sold with exchange for your rebuildable core.