Valvetrain Information

[bszopi]

We have been getting several questions lately on the forums concerning parts associated with the valvetrain. I decided to start a general information article covering common questions that come up. Hopefully the article will grow to a wealth of information.

Use the Table of Contents on the right to go to the appropriate section.

[break=Pushrods]Pushrods

Pushrod Length

Intake pushrods measure 144.18 mm (5.68 inches) long.
Exhaust pushrods measure 152.51 mm (6.0 inches) long.

Pushrod Locations

[center][table="width=200]{colsp=4}[b][size=3]Firewall[/size][/b]
CYL|Valve|Valve|CYL
[size=4][b]5[/b][/size]|Exhaust Intake|Exhaust Intake|[size=4][b]6[/b][/size]
[size=4][b]3[/b][/size]|Intake Exhaust|Exhaust Intake|[size=4][b]4[/b][/size]
[size=4][b]1[/b][/size]|Intake Exhaust|Intake Exhaust|[size=4][b]2[/b][/size]
{colsp=4}[b][size=3]Radiator[/size][/b]
[/table][/center]

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[ckrobins]

Is the pushrod location drawing for a RWD car? I have a transverse-mounted engine (generation II - VIN M) and "Radiator" and "Firewall" would belong on the right and left of the diagram, respectively. The engine block/timing case and the fuel injector wiring harness are set up this way, but the intake manifold has cylinder numbers cast into it showing the even cylinders (2-4-6) on the firewall, and the odd cylinders (1-3-5) on the radiator side. Are there other 60degreeV6 engines that have this cylinder arrangement? I suspect that the intake manifold may have been replaced with one from a different engine model.