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Hey Chestnut, try this Ali cleaner, it's a phosphoric acid. Brings up cast Ali like brand new. Use a spray bottle, and spray it on neat or 50/50 with water. But remember to add the acid to the water if you mix it, not the other way around or it will splatter and burn you. Ali gearbox from this...... To this..... Notice it worked best on the cast extension housing. I spray it on, let it sit for 10-15 minutes then spray again and scrub with a brush. Wash off with water. Will come up like new. Sent from my S21 using Tapatalk

I think going for a modern "boss", either with stock clevo iron or alloys is not necessary now, unless you really want the boss look. There are dozens of aftermarket Windsor heads that are equal to or better than any Clevo style head, which make for a tighter and lighter package... and have a huge selection of manifolds to suit. Sent from my CPH1920 using Tapatalk

Windsors rev, Clevos breathe That's the way my old man has always put it, and why the Clevo heads on a Windsor was the popular choice back before alloy heads became as available as they are now

Varkin hell that looks good ,here is the balancer cleaned up a bit 72da numbers matching block n heads Sent from my SM-G610Y using Tapatalk

Hence slower to rev...... Windsor always rev more freely, than Clevos for this reason. No reason why (with todays technology) you cant make a Clevo run to 9,000. H beam rods, tungsten valves, billet cranks, all available. Now, what to do about the oiling system..

Agreed. Prime it and wheel silver paint. Easier to wipe oil stains off too....

I think people just didn't rate the 400 with any performance value, with it being a smog motor almost its whole life, it would have just been scrapped along with whatever wreck it was in at the junk yard. Only now, with the good clevo alloy heads coming in, have they been able to wake them up and make the power they always should have done. There was a decent amount made in the 11 or so years they were offered, much more than that of clevos, which were only made for 4 years in the States. Sent from my CPH1920 using Tapatalk

this kit looks good ,just about has everything for about $750 landed,if i bought all these bits seperaterly it would be at least $1500 from e bay australia.https://www.ebay.com/itm/171114954649

Sure that would work, it won't make it shiny though. It will give a dull, "as cast" finish. Sent from my CPH1920 using Tapatalk