IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: grand camino on July 23 2013, 11:10:46 AM

Title: HS 1.65s with stock valve covers ?
Post by: grand camino on July 23 2013, 11:10:46 AM

Just bought a set of HS 1.65's for my stock,fully ported,and clearanced , heads...tech guy at HS said he's 90% sure they will clear v/cover :icon_confused:              hmm...90%,does that mean it will only break 10% of my new rockers?

Title: Re: HS 1.65s with stock valve covers ?
Post by: earlbrown on July 23 2013, 11:47:48 AM

I'm 99% sure you won't even be able to bolt down the valve covers.


  It's not a matter of breaking rockers, it's that the roller rockers are taller than stock rockers and need more room.

The fix is either taller valve covers or valve cover spacers.

Title: Re: HS 1.65s with stock valve covers ?
Post by: PacecarTA on July 23 2013, 11:50:34 AM

Im 100% sure they wont clear
youll need valve cover spacers ,  RJC ...or ebay has them cheaper
and even with the spacer , if you glue them to head you might even need to run a thick VC gasket

Title: Re: HS 1.65s with stock valve covers ?
Post by: grand camino on July 23 2013, 12:33:26 PM

 Thanks guys...i was pretty sure i had read that i would need taller... I read that spacer can/will leak...just redid the engine..spent many $'s....see new sig...whats another 200. for v/covers  :icon_eyes:

Title: Re: HS 1.65s with stock valve covers ?
Post by: Forzfed on July 26 2013, 07:25:45 PM

Won't fit!  Spacers if done right won't leak, my spacers don't leak.

Title: Re: HS 1.65s with stock valve covers ?
Post by: daveismissing on July 27 2013, 04:03:34 PM

Just musing out loud- Would two piece valve covers, where the lid is just a flat lid be useful on our cars?

Title: Re: HS 1.65s with stock valve covers ?
Post by: Forzfed on July 28 2013, 09:50:16 AM

That is actually a good idea.  A two piece where you can seal the bottom and have like an insert slide into the bottom half would be awesome.

Title: Re: HS 1.65s with stock valve covers ?
Post by: Steve Wood on July 28 2013, 11:52:31 AM

Pretty sure there are two piece valve covers available for some cars.  Makes it easy to check valves and such without spilling oil all over the place.  I think the tops are o-ringed.  then you could use spacers on top for additional clearance if required.

Bottoms should be o-ringed as well for a good seal.

Title: Re: HS 1.65s with stock valve covers ?
Post by: Forzfed on July 28 2013, 03:28:18 PM

Yes, you are right Steve.  The top unscrews and the side skirts stay and the rest stay mounted.  I remember M/T had them for small block Chevy's