85lebaront2 Posted October 14, 2017 Share Posted October 14, 2017 Well, the 32k efi engine I got has a cracked block I did buy a pair of heads on eBay. Should keep me busy. Damn, bummer. Maybe you can use the pistons for more compression on the carbureted block. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 14, 2017 Share Posted October 14, 2017 Bummer! Hope you didn’t pay much for the block. I got the engine for free, but I did put some time into getting it and stripping it. Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 15, 2017 Author Share Posted October 15, 2017 I got the engine for free, but I did put some time into getting it and stripping it. Well, that’s a pain but not quite so bad. Hope the heads are good when you get them. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 15, 2017 Share Posted October 15, 2017 Damn, bummer. Maybe you can use the pistons for more compression on the carbureted block. The idea was to have a complete engine to swap in. THAT I could probably do in a weekend. 32k, I'm sure the pistons are stock. My engine is a reman from Promar in New Jersey, so I'm sure it's been bored at least 0.030 over. Guess I just have to find a good '88-'92 short block, or any D9TE, and order an Engine Master kit for early efi. The complete kit is under $300. (pistons, rings, bearings *any size under or over* + gaskets & seals, timing set, freeze plugs, cam & lifters) I will order a cam from Scott once I get to porting the heads that will be here by Friday. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 15, 2017 Share Posted October 15, 2017 Well, that’s a pain but not quite so bad. Hope the heads are good when you get them. The heads should be good. They're just covered in dust and a little surface rust. If I'm going to port everything will be ground or polished anyhow. Block and manifold faces can be lapped on a surface plate or even just gone over with some crocus cloth wrapped around glass or stone like a sanding block. Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 15, 2017 Author Share Posted October 15, 2017 The heads should be good. They're just covered in dust and a little surface rust. If I'm going to port everything will be ground or polished anyhow. Block and manifold faces can be lapped on a surface plate or even just gone over with some crocus cloth wrapped around glass or stone like a sanding block. I hope you’ll start a thread to show how you do that. 👍 Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 15, 2017 Share Posted October 15, 2017 I hope you’ll start a thread to show how you do that. 👍 I'll be sure to! So far all I have is a bigger carb and some cheap porting supplies. Once I have the heads I'll take some 'before' pics and start the saga. I have never fully ported a set of iron heads. *I know a V-8 will be tedious, loud, and dirty* Lots of two strokes (from 30cc chainsaws to 750 triples) and some aluminum four cylinder 4 strokes, before the auto makers figured out how to get real power out of them. For now I'm happy to have a PAIR of heads already done, to my door, for $288. The machine shop would have cost way more than that just to tank, crack check, guides, valve job, new springs, and assemble them (probably *more* than that, for only one) Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 15, 2017 Author Share Posted October 15, 2017 I'll be sure to! So far all I have is a bigger carb and some cheap porting supplies. Once I have the heads I'll take some 'before' pics and start the saga. I have never fully ported a set of iron heads. *I know a V-8 will be tedious, loud, and dirty* Lots of two strokes (from 30cc chainsaws to 750 triples) and some aluminum four cylinder 4 strokes, before the auto makers figured out how to get real power out of them. For now I'm happy to have a PAIR of heads already done, to my door, for $288. The machine shop would have cost way more than that just to tank, crack check, guides, valve job, new springs, and assemble them (probably *more* than that, for only one) 750 3-cylinder? I've ridden one of those. 😉 Link to comment Share on other sites More sharing options...
85lebaront2 Posted October 15, 2017 Share Posted October 15, 2017 I'll be sure to! So far all I have is a bigger carb and some cheap porting supplies. Once I have the heads I'll take some 'before' pics and start the saga. I have never fully ported a set of iron heads. *I know a V-8 will be tedious, loud, and dirty* Lots of two strokes (from 30cc chainsaws to 750 triples) and some aluminum four cylinder 4 strokes, before the auto makers figured out how to get real power out of them. For now I'm happy to have a PAIR of heads already done, to my door, for $288. The machine shop would have cost way more than that just to tank, crack check, guides, valve job, new springs, and assemble them (probably *more* than that, for only one) Biggest thing will be the get the air pump "bumps" out of the exhaust ports. You will find there are six active and two dummys (where the crossover passage runs). They seriously obstruct the exhaust flow and if you have to have them for emission inspection they will still work fine. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 15, 2017 Share Posted October 15, 2017 Biggest thing will be the get the air pump "bumps" out of the exhaust ports. You will find there are six active and two dummys (where the crossover passage runs). They seriously obstruct the exhaust flow and if you have to have them for emission inspection they will still work fine. I'm a paid member on Scott's site. I see what needs done, and am glad for his warnings about where NOT to go.. Afa wdydtytt, I did spend a little time fitting my stubstack to the new carb. 750's must have a little taller choke horn than 5 & 600's. Gary, yes the kawi 'H' bikes are evil bitches if chambered and ported when they come on the pipe. Link to comment Share on other sites More sharing options...
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