can the valves be adjusted on a 1998 454 7.4 vortex with the roller lifters
can the valves be adjusted on the 454 7.4 engine
Any antifreeze which is Dexcool approved.
why does a 1971 454 chevelle 2hrs. running time back fire through the exhast possible the firing order is not correct, valves not adjusted properly,
How long since the valves were adjusted? These bikes love well adjusted valves, and if they are way out of adjustment, they run very poorly. There are a few other things to check out too, such as fuel restriction, or it could be running on one cylinder. There is a message board for these bikes located at the following URL, with lots of knowledgeable people, myself included- http://ltd454.proboards41.com/v45index.cgi? andrewk
the answer is 1998
no the 454 seems to run hotter that other models
They are under the intake manifold.
Sunset Beach - 1997 1-454 was released on: USA: 27 October 1998
There is 8 of them, 1 Per cylinder
A timing CHAIN
The standard fuel pressure for a 1998 Chevy 3500 with a 454 engine is 50 PSI. If fuel pressure drops much below this level, the fuel injectors will not work properly.
454 + 454 + 454 + 454 + 454 + 454 = 2724