I'd go to a DIY yard and pull heads from a Caravan or Diamante SOHC. I'm not sure if the Caravan cams are the same, so if you go this route, swap the Montero cams into the new heads. You also might need a couple of longer bolts for the valve covers since one boss on the Caravan head is lower than the Montero. I wouldn't use the Diamante cams unless you're prepared to degree them.



Yes....... 3.310" is standard spec... no more than .008" milling total head + deck.... check for warp.

Look close at the decks for etching.

I probably don't have to tell you to clean those deck hole threads and watch the clamping range of the bolts..... torque to 80 lb-ft. Head studs are available if you want a solid clamp, but the bolts work fine for a N/A engine if you're careful.

Spring pressure is 74 lbs at the installed height of 1.591" - limit 1.630". I assume that's the spec for a new spring - all of them will lose pressure after a few miles. Mine all measure about 60-65 lbs and I didn't change them.

Frank