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Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651570
09/13/10 01:50 PM
09/13/10 01:50 PM
Joined: Apr 2008
Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
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Ok, thanks for the tip. What would be a better head to use instead of the 906's. What if I had the 906's flat milled .040?


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Re: 413 motorhome engine ???"s #651571
09/13/10 01:53 PM
09/13/10 01:53 PM
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Posts: 30,250
Florida STAYcation
dIc dOc Deity ! Offline
The village idiot's idiot
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Quote:

much easier just to take a felt marker and write
"413" on the 383's valvecovers... no?




WH .....???? ... whatchoobeensmokin?

Re: 413 motorhome engine ???"s [Re: partfiler69] #651572
09/13/10 01:56 PM
09/13/10 01:56 PM
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dIc dOc Deity ! Offline
The village idiot's idiot
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Quote:

Ok, thanks for the tip. What would be a better head to use instead of the 906's. What if I had the 906's flat milled .040?




What do you plan on doing with the engine combo ? ... have you pulled the heads off that 413 ? ..... the 906's can not be milled enough to get decent compression with that shortblock.

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651573
09/13/10 02:03 PM
09/13/10 02:03 PM
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Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
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It will be replacing the tired 318 in my wifes 73 satty. It is just a weekend cruiser. Nothin radical or extreme.


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651574
09/13/10 02:11 PM
09/13/10 02:11 PM
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dIc dOc Deity ! Offline
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I think that you would be muchO happier with a combo of a 516 head cut say 30 ... with a set of late model valve sizes.

Have you seen those dished pistons ?

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651575
09/13/10 02:27 PM
09/13/10 02:27 PM
Joined: Apr 2008
Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
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Quote:

I think that you would be muchO happier with a combo of a 516 head cut say 30 ... with a set of late model valve sizes.

Have you seen those dished pistons ?



What can i find a set of 516's on? This will be my first build. And I won't be jerking the heads off 'till this weekend, so I've yet to see this 'dish'. But eventually i would like to punch the block .062, and make a 426. But for now, BUDGET is the name of the game.


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651576
09/13/10 02:36 PM
09/13/10 02:36 PM
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dIc dOc Deity ! Offline
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Early/mid 60's B engines for the heads ....but if BUDGET is the game and if you already have a set of 906's ....maybe cut those 60.

But it will still have low compression.

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651577
09/13/10 02:48 PM
09/13/10 02:48 PM
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Poplar Bluff, Missouri
partfiler69 Offline
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Thanks


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651578
09/13/10 03:21 PM
09/13/10 03:21 PM
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Irving, TX
feets Offline
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Be sure to cut the intake side of the heads to keep the geometry the same. You can't slam .060" off the intake ports. It requires a different amount and possibly a different angle to keep things the same.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: 413 motorhome engine ???"s [Re: feets] #651579
09/13/10 09:12 PM
09/13/10 09:12 PM
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Poplar Bluff, Missouri
partfiler69 Offline
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Well, from what I am reading about the low compression of this beast, it seems to have BOOST written all over it!


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651580
09/13/10 09:31 PM
09/13/10 09:31 PM
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Florida STAYcation
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Yes it IS a good lower rpm blower or turbo base motor. And YES .. you do have to cut some off the intake side of the heads to make everything line-up OK after cutting .060 ... the amount and the formula escapes me at this point.

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651581
09/14/10 09:06 AM
09/14/10 09:06 AM
Joined: Apr 2008
Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
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Thanks for the help, everybody.
I'm also wondering, is it possible to put a set of 383 pistons in it, or do I need 426W pistons?


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651582
09/14/10 03:45 PM
09/14/10 03:45 PM
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383 pistons will work ... but you will have about 4 to ONE compression ratio ..

426w pistons would be the ticket OVER those 383 ones ..

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651583
09/14/10 05:45 PM
09/14/10 05:45 PM
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Posts: 9,336
South-Central (Sebring), FL
Commando1 Offline
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Quote:

383 pistons will work ... but you will have about 4 to ONE compression ratio ..
..



Hey, the way the quality of gas keeps deteriorating, that may be a good thing....

Re: 413 motorhome engine ???"s [Re: dIc dOc Deity !] #651584
09/14/10 07:15 PM
09/14/10 07:15 PM
Joined: Apr 2008
Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
Still Wondering
partfiler69  Offline
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Quote:

383 pistons will work ... but you will have about 4 to ONE compression ratio ..



Can't I just have the heads flat milled .010?


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651585
09/14/10 07:28 PM
09/14/10 07:28 PM
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Florida STAYcation
dIc dOc Deity ! Offline
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Quote:

Quote:

383 pistons will work ... but you will have about 4 to ONE compression ratio ..



Can't I just have the heads flat milled .010?




MORE LIKE .....1.100 !!

Re: 413 motorhome engine ???"s [Re: partfiler69] #651586
09/15/10 09:50 AM
09/15/10 09:50 AM
Joined: Mar 2007
Posts: 9,336
South-Central (Sebring), FL
Commando1 Offline
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Quote:

Can't I just have the heads flat milled .010?



Please say you're being facetious.
At least I pray so.

Re: 413 motorhome engine ???"s [Re: Commando1] #651587
09/15/10 03:26 PM
09/15/10 03:26 PM
Joined: Apr 2008
Posts: 223
Poplar Bluff, Missouri
partfiler69 Offline
Still Wondering
partfiler69  Offline
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Posts: 223
Poplar Bluff, Missouri
Quote:

Quote:

Can't I just have the heads flat milled .010?



Please say you're being facetious.
At least I pray so.



Yes, this might be my first engine teardown, but I do have a negligable amount of common sense.


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Re: 413 motorhome engine ???"s [Re: partfiler69] #651588
09/15/10 04:01 PM
09/15/10 04:01 PM

A
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A



I think someone did some measuring and figured out that 383 pistons would work in a 413 (bored to 4.25) with a 4.15 stroker crank. Not sure anyone has ever actually tried it, though.

That would make it a 472, BTW.

Re: 413 motorhome engine ???"s #651589
09/15/10 04:35 PM
09/15/10 04:35 PM
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Posts: 15,487
Florida
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Florida
a 440 crank in a 400 block makes a 470 stroker

would be sweet to make a 413/472 strokers as well

I think I will swing by and pick up that MH 413 thats for sale in my town

I think the odd looking wp and tall heads would deff be kool looking in my 85 truck

should be fine for towing my 440 truck around instead of the 318 sb thats in it

is 300$ a bad deal?,it runs and moves the MH down the road good,no smoke,noise..ect..

its just a PITA to pull out,hope they want to scrap it so I can

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