'79 225 engine -is it a hydraulic lifter engine?

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Well, that is around the time they were phased in, BUT, I will tell you that the original slant six engine in my 79 Volare wagon IS a solid lifter engine. Absolutely NO doubt about that.
If you pull the valve cover, you will have your answer.
Jus sayin....
 
If you pull the valve cover, you will have your answer.

Yup, what Badvert said. Who knows what got changed over the years. I have a 79 slant out of a D-100 and it's a solid. IIRC the factory didn't start making juice cam slants till 82.
 
Well, that is around the time they were phased in, BUT, I will tell you that the original slant six engine in my 79 Volare wagon IS a solid lifter engine. Absolutely NO doubt about that.
If you pull the valve cover, you will have your answer.
Jus sayin....
IT is #s original, did not want to pull the cover. Sounds hydraulic. Thanks
 
An original 225 engine in a '79 is a solid-lifter engine.

Officially, the first year for hydro lifters in the Slant-6 was 1981. A small production test run of hydro motors was built and installed on regular production vehicles during the 1978 model year—not as a special option or anything, just some people who bought 1978-model Slant-6 vehicles happened to get a hydro motor; particulars were given in a large TSB. Other than that, no, 1979 and 1980 were not years when it could be either. I think some people are mixing up the midyear-'76 changeover of the 225 engine from forged to cast crankshaft with the '81 intro of hydro lifters.

The hydro-lifter engines have a different valve cover bolt pattern, so that's an easy visual ID for a factory hydro-lifter engine, but the hydro valvetrain parts will fit just fine under the solid-lifter valve cover, so if someone mixed and swapped parts in the past, glancing at the valve cover won't necessarily tell the tale.
 
Remove the oil fill cap, and look at a rocker arm. Adjuster screw or no adjuster screw? If I recall right there is no baffle obstructing the view of the rocker arm.
 
My 80 was a hydro. I subbed in a solid from 77. I believe a 79 could be either,
but if you start it up, you should be able to hear it.
Ha!! I can't hear chit!! The dog ate my hearing aid!!! No that is a lie, I can't afford a good hearing aid!!! Thats is the truth! I told that to a lady other day she told me her cat hid hers no joke!! lol
I do good to ever hear a slant when running!!! Even with glass packs.
 
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