FLMustangMan

Around how much do you guys think it would cost to have a machine shop acid clean my block and bore it to .20 over. i plan on getting forged internals andinstalling it myself if it is not to expensive for the above question. any ideas of cost would help. thanks

hotrod7687

Last engine I had done it cost me $150. That included acid vat, boring, new freeze plugs and cam bearings.

FLMustangMan

really? thats not alot at all. i was thinking mabe it would be close to mabe $500. did you install the internal stuff yourself or did you have someone do it? if so how much was that-about how much? thanks

Mark99GT

That is dirt cheap. Around here is 400-500 for a bore, hone and deck.

FLMustangMan

how hard would it be to install the internal stuff myself. i'm going to take my time so i dont think it should be to hard but if anyone has done it and found it difficult please tell about it.

MustangMan2590

how much hp gains will be expected after a bore

FLMustangMan

that a good question? also with my old engine now i'm getting about 16mpg. would it get alittle better mpg since it will all be refreshed inside and not all old and scractched and stuff?

Mark99GT

Theres nothing magic about building an engine. But you do need to know what you're doing. Making sure you install things the right way, balancing, getting the ring end gaps correct...things like that can be difficult. You'll see a small increase in power from a fresh motor, nothing crazy though. .03 over adds like two cubic inches I think. Youll probably see a tad better fuel economy too.

FDNYBullitt

As stated above, its not magic BUT you will need some speciality tools to assemble it. If you have never built a motor before, the best I can say is get a real service manual for the specs and assembly procedureson your motor. Also, if your going forged it would be a good idea to have the new pistons on hand do the shop can match them BEFORE final honing. I'm sure if you ask around a few of your friends will have most of the tools you need. As far as HP increase, .020 over will be negligable but fuel mileage should go up a tad because its a nice tight motor, good luck.

contentsunderpressur

150 is dirt cheap. Around here it's 150 to clean it and install freeze plugs and 10 dollars a hole to bore it. You won't see any hp gains from boreing. If the engine is built tight you'll actually see hp lose if you go back with the stock compression, cams ect. If you go n/a then go up a good bit on your compression and get the PI heads while it's apart.