Author Topic: 400 build?  (Read 2344 times)

Offline A383Cuda

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Re: 400 build?
« Reply #15 on: February 20, 2007 - 10:24:04 AM »
I was supposed to meet up with the guy on the 400 block yesterday. I didn't hear from him...turns out he's still out of town. He gave me the machine shop's name where the motor is located. I spoke with the shop owner and he verified that it is a standard bore motor. I figured since it's already a machine shop, I'll have them prepare the block for me. He quoted $50 to disassemble it (short block), $75 to sonic test it, $80 for shot peening, $65 to vat the block, $200 to allign hone the block for main studs, $265 to bore and hone the cylinders, $165 to 0 deck or square deck the block, $45 to install cam bearings, and $65 to install core plugs and paint the block. Does this seem high to anyone...or is this reasonable? That's $1010 just to prepare a block. I've never done this before, so I am not sure if this is in line or not. I am then wanting to order the 451 stroker kit from 440 source. Are there any options I should get? Is it best to have them balance the assembly or the machine shop. I was quite impressed with their website. This brings me to approximately $2550 in the short block. What heads would you recommend for this?  Am I on the right path?




Offline Chryco Psycho

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Re: 400 build?
« Reply #16 on: February 20, 2007 - 10:30:19 AM »
the prices are highh side but worht it if he does good work saving a few $$ to have the engine poorly machined is not a good call
What budget are you looking at for heads ?, I would look at an Indy EZ or similar personally

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Offline moper

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Re: 400 build?
« Reply #17 on: February 20, 2007 - 10:38:38 AM »
Sounds like you're doing fine. $1010 is reasonable, it's about $200 less than I get, but I do a more thourough sonic test and I include the cost of the studs...lol. Sounds good to me.

The only options I would get are the chamfered bearings (make sure whoever assembles mocks up all 8 rods and checks for tight bearings at the chamfers). Also, decide on heads before you order the kit. Use flat tops for iron heads, and the 17cc dishes for aluminum heads.

I dont like Brandon's balancing. I would prefer my shop does it themselves. Make sure you get the B engine crank. Otherwise the counterweights will need trimming to fit. Also, make sure the shop measures all the journals on the crank, and cycles the rod bolts with ARP lube, then checks the rod big ends for size. Just mic'ing them out of the box isnt enough. And the pin ends wil need to be honed for the pins to fit properly. (and it should not involve emery cloth or sand paper, contrary to the instructions.)

For heads, You could use your iron heads. Any 906/452/346/902 would work fine with falt tops for a nice 9.7-10:1 engine. As for aftermarket, the MP Edelbrock styled heads would be nice, but cost more than the angled plug Edelbrock RPMS. IN any case, the iron heads should be fitted with 2.18/1.81 valves adn have a good performance rebuild. (the $500 ones for sale "done" should be avoided...) The new aluminums should be taken apart and the valve jobs checked and corrected if needed. Teh supplied srpings on the Edelbrocks should be fine for most cam choices too. I'dd run the RPMs myseld. But the MPs mean your existing exhaust headers will fit no problem. You may need to ding a tube to get the plug wires clear on the Edelbrocks.

Offline A383Cuda

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Re: 400 build?
« Reply #18 on: February 20, 2007 - 10:45:40 AM »
Chryco, there you go again....... just kidding! I appreciate your input. I was hoping to be able to build the motor for approximately $3500. Please don't laugh. I am starting to see that I may have been a bit naive. I had been told that if I found a decent running 440, I could add an intake carb and cam and have a decent motor. That's about the price range I had been told it would cost me to do that. So now, I am wanting to build a decent motor I can be proud of at a cruise night or on the street. I want to be able to drive it on the power tour or to mopars at the strip (for the show, remember...it's a convertible). I would prefer it to look somewhat original. I have heard good things about the Indy EZ heads and they have been a consideration. I want to be able to run on pump gas, so that's important. If it's worth it to pay a little more, then I will. I don't necessarily need overkill though. If I can do this with ported iron heads and an M1 intake (or similar), and Holley...I'd be happy. If not, then I'll take a little longer to build it and step up. What compression should I be shooting for? 10:1, 10.5:1, ....?

Offline A383Cuda

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Re: 400 build?
« Reply #19 on: February 20, 2007 - 10:52:03 AM »
They had a few of choices in the bearings. I have heard really good things about Total Seal. Which would you guys recommend?

Offline Killer_Mopar

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Re: 400 build?
« Reply #20 on: February 20, 2007 - 11:06:13 AM »
$1010 doesnt sound too bad, that is around what I paid for my block and it had everything you said done to it except paint....but it did have the oil passage massaged. Also, I would get it honed with a torque plate. If the machine shop doesnt have a torque plate for BB mopars, then I probably wouldnt have my engine done by them because no torque plate usually means little mopar engine experience. I agree with moper on the heads, don't buy the cheap 'rebuilt' $500 heads. If you can only afford $500 heads then try finding a lightly used set of good heads on eBay. I went ported 452 heads on my stroker because I wanted a stock looking engine. I ported them myself and after machine work and parts I have around $850 in them. If you are thinking about going with edelbrocks then keep in mind you will need to buy a good set of head gaskets, so factor that into your decision. If it wasnt for the fact that I wanted a stock looking engine I would have gone with Indys.
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Offline Killer_Mopar

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Re: 400 build?
« Reply #21 on: February 20, 2007 - 11:10:30 AM »
I was hoping to be able to build the motor for approximately $3500.

Probably not going to happen, at least for a complete engine (carb to oil pan). If you spend wisely, come across good deals, or have some parts you might come close though. If you want, PM me and I could tally up the total I have into my engine so you know what to expect. I will only do it if you ask because quite frankly, Im afraid to see how much I spent on it. :-\
70 Challenger R/T SE - The never-ending project........

Offline A383Cuda

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Re: 400 build?
« Reply #22 on: February 20, 2007 - 09:23:10 PM »
email sent.

Offline Chryco Psycho

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Re: 400 build?
« Reply #23 on: February 20, 2007 - 11:53:49 PM »
Total Seal make a great ring
the problem with engines is most of the parts have doubled or more in price in the last 2-3 years so cost have gone up not to mention general inflation costs to increase the labor as well , to do an engine right for $3500 is basically not possible now
Typically compression should be in the 9.8 range with Iron heads & 10.8with alum heads max for pump fuel

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