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Home » HD Forums » Forums » Boat Tech » 781's or 049's
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AZKCMale Offline
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Post Icon Posted: Dec. 28 2003,9:07 pm Post # 1 see this member send this member a private message  quote this post in reply
So whats the diff between these BBC heads? I've read the 781's have a little smaller intake runners but same valve/chamber size :stupid

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GoFastRacerMale Offline
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Post Icon Posted: Dec. 29 2003,4:59 am Post # 2 see this member send this member a private message  quote this post in reply
Well I've never CC'd the 781's only the 049's but here's what More-Tec lists them as!. :stupid

336781.....73-85...oval...OPEN...454, 118cc chamber, 256/114cc ports

353049.....73-84...oval...OPEN...454, 122cc chamber, 255/119cc ports
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AZKCMale Offline
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Post Icon Posted: Dec. 29 2003,9:09 am Post # 3 see this member send this member a private message  quote this post in reply
A little more compression from the 781's but ya lose a little on the exhaust side.  :stupid

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GoFastRacerMale Offline
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Post Icon Posted: Dec. 29 2003,10:15 am Post # 4 see this member send this member a private message  quote this post in reply
I've never run the 781's but I bet a quick cleanup with the grinder would make them awful close to 049's!. If the price was right I'd use em!.. :good
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AZKCMale Offline
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Post Icon Posted: Dec. 29 2003,12:47 pm Post # 5 see this member send this member a private message  quote this post in reply
We'll see how the old Ebay dealio goes. I'm being a cheap bastard on this head shopping gig. I'll find a set soon enough.

I need to get my 049's over to the shop to see what its going to cost to replace the seat and valve, or if they can be fixed.

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GoFastRacerMale Offline
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Post Icon Posted: Dec. 29 2003,5:49 pm Post # 6 see this member send this member a private message  quote this post in reply
Hey wtf, it's only $$$$$$$$$$$$$$$$$$$
:laugh
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AZKCMale Offline
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Post Icon Posted: Dec. 29 2003,6:29 pm Post # 7 see this member send this member a private message  quote this post in reply
Yeah but right now its her
$$$$$$$$

Edited by AZKC on Dec. 29 2003,6:30 pm

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GoFastRacerMale Offline
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Post Icon Posted: Dec. 29 2003,8:52 pm Post # 8 see this member send this member a private message  quote this post in reply
Hey I can relate to that!.. :laugh  :laugh
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Post Icon Posted: Jan. 11 2004,8:54 pm Post # 9 see this member send this member a private message  quote this post in reply
Hey Art, what about these:

343772 oval
3933148 oval

A peep over on hot boat is selling these.  Are they worth it???

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GoFastRacerMale Offline
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Post Icon Posted: Jan. 12 2004,5:00 am Post # 10 see this member send this member a private message  quote this post in reply
Well this is all I could find on them, they are a simi open chamber head but they may have the smog style chambers, you'd have to look at the chambers and ports to tell!..How much for them??.. :stupid

343772.....68-86...oval...OPEN...366T, 427T, 454

3933148....69-84...oval...OPEN...'69 396/265hp, 366T, 427T, 112cc chamber
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Sleek-JetMale Offline
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Post Icon Posted: Jan. 12 2004,5:03 pm Post # 11 see this member send this member a private message  quote this post in reply
So it looks like they are heavy duty truck heads... hmmm, I'll probably pass on 'em

He didn't mention how much, plus I'd have to ship them, so I'd say they wouldn't be worth it.  I'll keep looking for some 049's.

Thanks GoFast.   :good

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GoFastRacerMale Offline
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Post Icon Posted: Jan. 12 2004,8:21 pm Post # 12 see this member send this member a private message  quote this post in reply
You're welcome!. :good If you're going to go with a factory iron oval head, the 049's are the best you can get. With the big valves and a clean up I've seen 500hp easy with a 454!.. :good
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