Re: To stroke or not to stroke (small block)
[Re: DPelletier]
#903823
01/13/11 10:56 PM
01/13/11 10:56 PM
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Joined: Jun 2004
Posts: 1,496 Sask, Can.
72demon416
pro stock
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pro stock
Joined: Jun 2004
Posts: 1,496
Sask, Can.
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Quote:
It's a NOM 340 car; build a stock appearing 360 stroker (because a 360 block is far cheaper) and call it a day.
Dave
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Re: To stroke or not to stroke (small block)
[Re: Mr340]
#903825
01/13/11 11:10 PM
01/13/11 11:10 PM
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Joined: Oct 2010
Posts: 606 Montana
Yancy Derringer
mopar
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mopar
Joined: Oct 2010
Posts: 606
Montana
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Quote:
Quote:
Explain to me how a 340 block is so much different from a 360 block "to maintain appearance."
The 340 cast into the right side of the block
Yeah, well, I knew that. Not many people are gonna scrutinize the block no's. It's not like, say, a BB versus RB where you can tell at a glance.
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Re: To stroke or not to stroke (small block)
[Re: Yancy Derringer]
#903826
01/13/11 11:30 PM
01/13/11 11:30 PM
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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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The difference in the cost will be the block itself, so short of your initial 340 block cost there's no difference. A stock 340 (or 360 for that matter) block can handle around 500HP reliably, beyond that you risk breaking the block (Sure, some have lasted a long time pushing 600HP but that's a dice roll big time). For what you are shooting for you should be just fine building up a stock block. You can play down a 340 all you want, if the time comes to sell the car, NOM or not, IT WILL make a difference to some buyers (quite a few of them IMO).
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Re: To stroke or not to stroke (small block)
[Re: 471Magnum]
#903827
01/14/11 12:13 AM
01/14/11 12:13 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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Quote:
The Magnum based thing adds cost quickly unless you find a complete motor to drop in. Cam, lifters, rockers all cost more than LA stuff (most of which I already have). It will mean head work and the whole budget is based on reusing the heads as is.
BTW, just got a call from the machine shop. My 360 block checked out okay, so I'm clear to proceed in that direction if I so choose.
reground roller cam is $200 from hughes. reuse stock magnum rockers, or use SBC rollers (much cheaper than comparable quality LA rockers)....roller lifters can be reused...
but if you're on an extreme budget, keep the stock stroke 360, redo the stock rods with ARP bolts, hang some KB107's on them and set up at 0 deck (for future head upgrades) and run a lunati voodoo 60403. if the heads are good, should be an honest 360-390hp....
Last edited by patrick; 01/14/11 12:16 AM.
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 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: To stroke or not to stroke (small block)
[Re: ahy]
#903829
01/14/11 01:10 AM
01/14/11 01:10 AM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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360 is just a block at this point. It was missing a piston/rod. Crank was pretty messed-up, so it went into the scrap bin, but I can get another complete 360 for 100 bucks if I wanted. A 360 just doesn't have the exotic appeal though. If I'm going to deviate from a 340, I'm going all the way with a stroker motor.
We talk budget, but I have to consider what saving today could cost me tomorrow in terms of resale. I think installing a 360 (no matter how potent) would definitely hurt the value of the car, much more than the additional cost of rebuilding a 340. It's just numbers, but we all know how the market works on these cars. If I'm trying to sell a NOM car, I can push the merits of a "408-inch stroker motor" much easier than I can a "360 replacing the original 340".
The difference between stroking the 360, and rebuilding the 340 (w/new rods and pistons) is the cost of a crank minus the price difference on the blocks. I've done the math and basically, it's a near wash. It's not until I start upgrading things on the top end to feed the additional displacement that things start getting expensive on the stroker.
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Re: To stroke or not to stroke (small block)
[Re: 471Magnum]
#903830
01/14/11 01:49 AM
01/14/11 01:49 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:
It's not until I start upgrading things on the top end to feed the additional displacement that things start getting expensive on the stroker.
And the cost of going to a stroker is the same with either a 340 or a 360 as well.
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Re: To stroke or not to stroke (small block)
[Re: 471Magnum]
#903832
01/14/11 09:20 AM
01/14/11 09:20 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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Quote:
360 is just a block at this point. It was missing a piston/rod. Crank was pretty messed-up, so it went into the scrap bin, but I can get another complete 360 for 100 bucks if I wanted. A 360 just doesn't have the exotic appeal though. If I'm going to deviate from a 340, I'm going all the way with a stroker motor.
We talk budget, but I have to consider what saving today could cost me tomorrow in terms of resale. I think installing a 360 (no matter how potent) would definitely hurt the value of the car, much more than the additional cost of rebuilding a 340. It's just numbers, but we all know how the market works on these cars. If I'm trying to sell a NOM car, I can push the merits of a "408-inch stroker motor" much easier than I can a "360 replacing the original 340".
The difference between stroking the 360, and rebuilding the 340 (w/new rods and pistons) is the cost of a crank minus the price difference on the blocks. I've done the math and basically, it's a near wash. It's not until I start upgrading things on the top end to feed the additional displacement that things start getting expensive on the stroker.
well, value is going to suffer if it's not the numbers matching block even if you don't go 340...I'd keep the original (broken) block to go with the car, personally.
sounds like you've made up your mind, but if it were me, I'd put the money into the top end before the bottom end, since that's where you'll see your greatest power increase.
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 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: To stroke or not to stroke (small block)
[Re: patrick]
#903833
01/14/11 09:58 AM
01/14/11 09:58 AM
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Joined: Jan 2003
Posts: 3,719 Space Station #5
471Magnum
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,719
Space Station #5
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Original motor is long gone. Never had it. Current motor is date code correct, but not original. I wouldn't keep the paperweight if it were. It's a 340, not a hemi. I trip over enough crap in my garage already. Moot point anyway.
Top end upgrades are a whole lot easier to do down the road than bottom end ones.
-Jim
I can fix it... my old man is a television repairman. He's got the ultimate set of tools... I can fix it.
Currently Mopar-less
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Re: To stroke or not to stroke (small block)
[Re: 471Magnum]
#903834
01/14/11 11:41 AM
01/14/11 11:41 AM
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Joined: Oct 2003
Posts: 11,690 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,690
W. Kentucky
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My , build a 408 with the 360 block. Buy a cast Scat crank and rods, a decent set of light pistons, internally balsnce it, do a little clean up in the bowls of your heads along with a GOOD valve job. Call Dave Hughes at Hughes engines and have him spec you a cam to go along with the rest of your combo. It won't be huge by any means but it needs to work with everything you have, ci, intake, heads, carb, converter, manifolds/headers, gears and weight. His cams make great power . Most B bodys with 340s were anemic to say the least, a 408 will wake it up. Small block strokers think they're big blocks .
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Re: To stroke or not to stroke (small block)
[Re: justinp61]
#903836
01/14/11 02:39 PM
01/14/11 02:39 PM
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Joined: Dec 2004
Posts: 1,061 New Mexico
dmerc
super stock
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super stock
Joined: Dec 2004
Posts: 1,061
New Mexico
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Quote:
My , build a 408 with the 360 block. Buy a cast Scat crank and rods, a decent set of light pistons, internally balsnce it, do a little clean up in the bowls of your heads along with a GOOD valve job. Call Dave Hughes at Hughes engines and have him spec you a cam to go along with the rest of your combo. It won't be huge by any means but it needs to work with everything you have, ci, intake, heads, carb, converter, manifolds/headers, gears and weight. His cams make great power .
Most B bodys with 340s were anemic to say the least, a 408 will wake it up. Small block strokers think they're big blocks .
Yup, a 408 will put a smile on your face, no doubt!
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Re: To stroke or not to stroke (small block)
[Re: dmerc]
#903838
01/14/11 03:04 PM
01/14/11 03:04 PM
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Joined: Jan 2003
Posts: 24,562 Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
My , build a 408 with the 360 block. Buy a cast Scat crank and rods, a decent set of light pistons, internally balsnce it, do a little clean up in the bowls of your heads along with a GOOD valve job. Call Dave Hughes at Hughes engines and have him spec you a cam to go along with the rest of your combo. It won't be huge by any means but it needs to work with everything you have, ci, intake, heads, carb, converter, manifolds/headers, gears and weight. His cams make great power .
Most B bodys with 340s were anemic to say the least, a 408 will wake it up. Small block strokers think they're big blocks .
Yup, a 408 will put a smile on your face, no doubt!
in a A-body maybe. No need to go thru all that work. If all you want is a nice running 14 second engine and keep it close to stock appearance I'd go with the cheapest set-up. That would be a roller 360 w/ ported magnum heads and toss on a M1 and be done. Magnum 360 blocks can be had for around 2k. I've seen them as low as $1899 on Amazon. This one is $2299. http://cgi.ebay.com/ebaymotors/89-90-91-...=item518d1bc13a
Since it is a SB car and since he already has all the SB stuff inplace and since he doesn't want to go fast I won't recommend a BB at this time.
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