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  1. hcarr

    Wix filters and 340 HP manifolds

    If you can use the longer filter do it. 68 and 69 used the same longer oil filter in 1970 the filter per the company they listed using the shorter one. the exhaust manifolds were the same 68 thru 70 in 1971 they changed the passenger side. I had a exhaust shop make mine.after I through away the...
  2. hcarr

    breather or oil cap?

    YEP exactly!!!
  3. hcarr

    breather or oil cap?

    The PCV is the only hole on the left Valve Cover ! On the right one is where the oil filler cap and Breather filter are at.
  4. hcarr

    breather or oil cap?

    My car from factory has oil cap on the right side with the breather filter and the PCV vale by itself on the left valve cover.
  5. hcarr

    Let’s hear a 340 story

    My first 70 duster 340 ran consistent 14.2 when it was new and had 3.91 rearend. I started with all the easy stuff like Heddman hustler headers, slicks and 4.56 rear still smoked tires bad coming off the line until I put traction bars on it. It was then running 12.5s and still very streetable I...
  6. hcarr

    what year is this 340?

    that is from a 1970 model year and should have a steel crank
  7. hcarr

    318..blown head gasket??

    It is prob. just leaking from the loose header bolt. That bolt goes into the water jacket on the head. I would wrap some teflon tape on the threads and tighten it back down. Howard
  8. hcarr

    Max overbore for LA 340 block? .060" too much??

    .060 is to much for small block mopars. Because of the weak ten bolt pattern heads you will continue to blow head gaskets unless you have the cylinders o-ringed. I know from experience cuase in the early 70's I had mine bored .060 over and trw 12 and a half to one pistons and was constantly...
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