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11-24-2015, 01:33 PM | #1 |
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Head recommendation for a 59A
Putting together a 59A motor and looking at new Edelbrock heads but they come in 2 versions, 65 and 74 cc.
Specs as follows ; bored to 3 5/16", L 100 cam, 4" crank, Manley 1.5 valves, dual 97`s and Ross forged pistons. Fully balanced as well. What size heads would work the best ? |
11-24-2015, 01:47 PM | #2 |
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Re: Head recommendation for a 59A
Large chambers with most bigger engines.
Harry |
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11-24-2015, 01:50 PM | #3 |
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Re: Head recommendation for a 59A
It really depends on what compression ratio you want to end up with.
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11-24-2015, 01:52 PM | #4 |
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Re: Head recommendation for a 59A
I am new to this game so still learning.
Engine is going in a 32 pickup, early 40`s 3 speed and not going to be running it down a quarter mile. |
11-24-2015, 01:56 PM | #5 |
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Re: Head recommendation for a 59A
You need all the compression you can get.
Use the 65cc heads. The 74cc heads are for blown motors. |
11-24-2015, 02:15 PM | #6 |
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Re: Head recommendation for a 59A
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Alan |
11-24-2015, 02:16 PM | #7 |
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Re: Head recommendation for a 59A
No floor shift.
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11-24-2015, 02:59 PM | #8 | |
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Re: Head recommendation for a 59A
Quote:
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John "Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein Last edited by JM 35 Sedan; 11-24-2015 at 03:47 PM. |
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11-24-2015, 03:43 PM | #9 |
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Re: Head recommendation for a 59A
have used these heads allot. They are CNC milled and have enough clearance for any flat tappet cam . For 276 Ci the 64 cchead works out to be 8.5 on an unrelived block and runs well when properly tuned in87 gas. we use the 74 cc head on the 294 ci engine and it gives a little over 8 cr. Now to get the best results with any head, measure the piston to cilinder head clearance. we had to mill.015 off one head and .020 off the other to get this. You may think this is abit fussy but why spent 5 grand on an engine build and not get the most out of it.
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11-24-2015, 05:06 PM | #10 |
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Re: Head recommendation for a 59A
Lots of research and ended up pulling the trigger on the 65cc version.
Next question is studs mostly length. Are the stock studs that Roy Nacewicz offer, the proper length for the Edelbrock heads? I also read lots on the rolled threads in the block and builder is aware as well. |
11-24-2015, 05:13 PM | #11 |
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Re: Head recommendation for a 59A
I used 221 heads on my 59A motor.
They work really well. I traded for a complete 221 motor. |
11-24-2015, 07:26 PM | #12 |
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Re: Head recommendation for a 59A
I used the stud set Speedway sells with Edelbrock heads.
http://www.speedwaymotors.com/Flathe...-Kit,1785.html |
11-25-2015, 02:58 AM | #13 | |
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Re: Head recommendation for a 59A
Quote:
Martin. |
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11-25-2015, 02:59 AM | #14 | |
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Re: Head recommendation for a 59A
Quote:
Martin. |
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11-25-2015, 11:12 AM | #15 |
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Re: Head recommendation for a 59A
You made the right choice with the 65CC heads. Also, you cannot use stock length studs on all of the locations - as the 59AB style Edelbrock heads need longer studs on the bottom row as well as the two studs above that row. I'd order a stud kit that is designed for your heads. You can probably go to Speedway, or talk to Red's Headers.
In my case, I always use ARP studs - Red's Headers has you covered on a correct 'set' for your heads. One reason I like ARP is that they roll their threads, they don't stretch and they hold torque a lot better than a lot of the aftermarket kits (which are typically Grade 8 - at best . . . and I'd argue that from what I've seen!). |
11-25-2015, 08:45 PM | #16 |
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Re: Head recommendation for a 59A
Nobody I know makes studs for the flathead. Flathead studs have only 8-10 coarse threads, and are seated to prevent water leaks. Often wondered why nobody makes them, not enough flathead builders I guess. I uz bolts. Also there are 3 blind holes on each side, don't bottom out.
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11-26-2015, 06:40 PM | #17 |
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Re: Head recommendation for a 59A
To 2nd what Ron said, read Vern Tardel & Mike Bishops new book on building flathead engines. Vern uses cap screws, (8ba type bolts).
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11-29-2015, 04:55 PM | #18 |
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Re: Head recommendation for a 59A
So I'll ask the question, if no one makes flathead studs, what are the ones that are currently being sold?
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11-29-2015, 05:06 PM | #19 |
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Re: Head recommendation for a 59A
Why not use ARP studs, just work out the length .
Lawrie |
11-30-2015, 02:07 AM | #20 |
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Re: Head recommendation for a 59A
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