Re: best 360 block for stroker build
[Re: barrakudaman]
#456756
09/01/09 08:58 PM
09/01/09 08:58 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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The earliest (71-72,maybe 73) 360 blocks MAY be slightly better but I'd sonic check & water pressure check any year 360 block & if it passed I'd be comfortable w that as a foundation & go from there. yes the aftermarket blocks would be better,(stock) bad lifter bore angle corrected among other things, not sure which one I'd recommend, no experience on that.
live every 24 hour block of time like it's your last day on earth
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Re: best 360 block for stroker build
[Re: gdonovan]
#456758
09/02/09 08:11 AM
09/02/09 08:11 AM
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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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how much HP do you want to make? what kind of cam do you want to run? if it's in the 550 or less range, I'd start with an '89-up roller cam block to use factory roller lifters (1/4 the price of aftermarket retrofit hydraulic roller lifters, if the used ones are in good shape, they can be reused on a new or reground cam).
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2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: best 360 block for stroker build
[Re: cogen80]
#456762
09/02/09 09:03 AM
09/02/09 09:03 AM
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Joined: Oct 2003
Posts: 7,506
Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Early LA blocks are still plentiful and usually your best buy. Found a 71 out of a motor home for $250 pan to carb. They will accept all the late magnum head stuff. The key as to whether you go early or late might be your cam preference - flat tappet or roller.
Fastest 300
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Re: best 360 block for stroker build
[Re: ScottSmith_Harms]
#456766
09/02/09 11:28 AM
09/02/09 11:28 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Quote:
As far as horse power, 500 or so is about the limit for reliability in a stock block, otherwise look into a resto 340 block as mentioned, they can take allot more without trouble.
I have no idea how long their stuff is gonna last, but over on dakota-durango.com there's a few guys with stroker 360 magnum blocks that came in their 98-04 Dakota R/Ts that are pushing just over 500 to the wheels using boost, nitrous, or both, which means that they're up at or over 600 at the crank with a stock block.
they're also spinning them up to 7000-7500 rpms though, I don't know if that's on factory roller lifters or upgraded aftermarket lifters though.
they have impressive numbers, and might be faster on the track than me, but I like the low RPM torque from the 383 stroker I'm running in my dakota!
**Photobucket sucks**
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Re: best 360 block for stroker build
[Re: 70Cuda383]
#456767
09/02/09 11:45 AM
09/02/09 11:45 AM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Quote:
I have no idea how long their stuff is gonna last, but over on dakota-durango.com there's a few guys with stroker 360 magnum blocks that came in their 98-04 Dakota R/Ts that are pushing just over 500 to the wheels using boost, nitrous, or both, which means that they're up at or over 600 at the crank with a stock block.
And niether do they.
The bottom line is that ALLOT of stock small blocks are running 600 HP or more, especially with power adders, BUT, the factory block castings are thin wall designs were not designed for that much power and will (usually) fail or suffer from it accordingly (flexing/cracking/spliting cylinder walls, etc.). Some guys add bandaids like crank girdles, 4 bolt caps, block fill, etc. in an attempt to make them work, and it may even help in some cases, but ask anyone who's been in the race engine building industry a while (like Herb McCandles for example) and they will tell you in the long run stock small blocks will likely fail anyway if pushed much beyond 500HP.
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Sonic and mag checks are mandatory with any unknown block that you are going to put $ in to and pushing in to the 500HP range. Some late model B body cars ( 79 300 as an example ) came with 360's that were labeled "premium 360" on the valve covers. These engines were supposed to have been assembled with hand picked parts off the assembly line - assume with closer tolerances than the "standard" motors. I can't verify this and do not know if that would include the blocks???
