361 build up
#503651
10/22/09 11:28 AM
10/22/09 11:28 AM
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Joined: Oct 2009
Posts: 276
Temecula, Ca.
zzyzxpat
OP
enthusiast
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OP
enthusiast
Joined: Oct 2009
Posts: 276
Temecula, Ca.
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I wanted to get advise from the gurus here on my project. I am building a 361 because it is the original engine on a completely original '66 Coronet. I am using 516 heads, with 1.74 exhaust. Pistons will have to be custom since they are no longer made. I am going zero deck, with .038 gasket, and should be about 9.5-10.0 to 1 comp. I was thinking of putting a 440 crank in it to gain some CID. This will be used primarily on the street. I would also like a cam recommendation.I was thinking a Comp XE 292. What do you folks think? Thank you, Pat
" The last official act of any goverment, is to loot the treasury" George Washington
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Re: 361 build up
[Re: zzyzxpat]
#503652
10/22/09 12:13 PM
10/22/09 12:13 PM
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Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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Quote:
I wanted to get advise from the gurus here on my project. I am building a 361 because it is the original engine on a completely original '66 Coronet. I am using 516 heads, with 1.74 exhaust. Pistons will have to be custom since they are no longer made. I am going zero deck, with .038 gasket, and should be about 9.5-10.0 to 1 comp. I was thinking of putting a 440 crank in it to gain some CID. This will be used primarily on the street. I would also like a cam recommendation.I was thinking a Comp XE 292. What do you folks think? Thank you, Pat
not to be mean, but it sounds like a waste of time and money to me. custom pistons will be expensive. adding a 440 crank will be expensive (custom pistons, plus having the mains and counterweights turned down) to essentially get you a low deck 413. why not just start with a 440 and use some KB flat tops? it'll be cheaper in the long run, and you'll still be 25 cubes over your stroker motor. I'd just put the engine under a workbench all wrapped up if you ever want to return it to stock.
for a street car, don't go too big on cam. I'd probably look at something like an XE275HL. if your heads need to be rebuilt, I'd strongly look at just getting some aftermarket aluminum heads, OOTB they flow as well as well ported factory iron heads, and aren't much more expensive than redone stock heads with new valves, springs, keepers, retainers, seals, and machine work.
Last edited by patrick; 10/22/09 12:14 PM.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
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Re: 361 build up
[Re: patrick]
#503653
10/22/09 12:23 PM
10/22/09 12:23 PM
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Joined: Jan 2003
Posts: 21,065
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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Yeah its expensive to do a 361 but they are screamers.I had quite a few.The one that was in my 65 I tried to blow.The old man wouldnt let me put a 440 in unless the 361 went south.I floated the valves so many times I cant remember.Never did scatter it.Man that was a long time ago like 40 years.Rocky
Chrysler Firepower
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Re: 361 build up
[Re: patrick]
#503654
10/22/09 12:56 PM
10/22/09 12:56 PM
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Joined: Jan 2003
Posts: 2,111
Bowie, MD
Reggie
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,111
Bowie, MD
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Quote:
why not just start with a 440 and use some KB flat tops? it'll be cheaper in the long run, and you'll still be 25 cubes over your stroker motor. I'd just put the engine under a workbench all wrapped up if you ever want to return it to stock.
Unless you're just dead set on using the original engine, it won't hurt to stash it away if you ever want to return it to stock. It will also be much cheaper and less hassle. The other thing to think about is that if the worst thing happens (like a rod making an emergency exit) it's better to trash an easier to come by 440 than your original 361.
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Re: 361 build up
[Re: 383man]
#503656
10/23/09 01:32 AM
10/23/09 01:32 AM
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Joined: Aug 2005
Posts: 4,861
Riverside, Ca
R70RUNNER
master
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master
Joined: Aug 2005
Posts: 4,861
Riverside, Ca
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If you're attached to the original block at all.... Take my advice! Buy a block, AND a cart, then shove the 361 under the bench! I made a mistake of building my "numbers" block... NEVER again! NEVER! It shifted in the maching during boring and then required a sleeve!  the pad numbers were milled off! (again) and it DOESN'T make near the power that a 400+ stroker build or even a 440 build COULD'VE made!!!! for LESS! find another block and have at it! You will sleep better and have a better build in the end 
Current cars: 2000 Dak Quad Cab, 2012 Challenger,1970 Road Runner, 1994 Firehawk
1966 Coronet post sedan, 1988 Corvette, 2005 Magnum RT all SOLD
R70RUNNER<---VP Inland Empire Chapter of the MPM
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Re: 361 build up
[Re: zzyzxpat]
#503658
10/23/09 08:30 AM
10/23/09 08:30 AM
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Joined: Oct 2009
Posts: 276
Temecula, Ca.
zzyzxpat
OP
enthusiast
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OP
enthusiast
Joined: Oct 2009
Posts: 276
Temecula, Ca.
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Thanks for all the advise guys. I completely understand what you are saying, both from the cost of building a 361 and in keeping the original block safe. This gives me alot to think about. Pat
" The last official act of any goverment, is to loot the treasury" George Washington
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