340

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318willrun said:
When you see a 289 Mustang street car punch 11's, what's wrong with a 318 ??? Or a Fox body 302 go 10's, what's wrong with a 318??

Ain't Nut'n wrong with 'em..... roll up the sleeves and get to work !!!!
:thumbsup:
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I have always been fascinated by small blocks. When I was 16 i was addicted to old muscle cars and fell into the bigblock hype mostly because that is what I always saw in hotrod and car craft and mopar muscle magazines. I went to the local drag strip for the first time with a friend. It was gear jammer weekend. Of course I was all about the mopars but there was a 66 mustang that lined up and took off and he stood on the back bumper for over half the track I dont remember his et but I was blew away when he parked in the pits I went over and was talking to him he was running a 289 4speed. It blew my mind that such a small engine could be so violent. Then there was another guy with a 340 duster wheel standing it was just the coolest thing ever and ever since then I have been all about the small blocks.
 
dartfreak75 said:
I have always been fascinated by small blocks. When I was 16 i was addicted to old muscle cars and fell into the bigblock hype mostly because that is what I always saw in hotrod and car craft and mopar muscle magazines. I went to the local drag strip for the first time with a friend. It was gear jammer weekend. Of course I was all about the mopars but there was a 66 mustang that lined up and took off and he stood on the back bumper for over half the track I dont remember his et but I was blew away when he parked in the pits I went over and was talking to him he was running a 289 4speed. It blew my mind that such a small engine could be so violent. Then there was another guy with a 340 duster wheel standing it was just the coolest thing ever and ever since then I have been all about the small blocks.
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I've owned some 289's, they are peppy bone stock 2bbl form, for what they are.....
 
MoparMark91 said:
What to you mean tank? Like they couldn't handle the overbore?
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Yes. Sorry for the slang.
A 340 I have was already over bored @ .020. A sonic check revealed that was it. I was warned by my machinist that this would be best left alone.
 
rumblefish360 said:
Yes. Sorry for the slang.
A 340 I have was already over bored @ .020. A sonic check revealed that was it. I was warned by my machinist that this would be best left alone.
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Cause I'm buying a standard bore 340 and I've heard some guys go .30 .20 and even .60 but I was hoping to bore it .30
 
rumblefish360 said:
Yes. Sorry for the slang.
A 340 I have was already over bored @ .020. A sonic check revealed that was it. I was warned by my machinist that this would be best left alone.
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Do you happen to recall what the thinnest wall number was at that point?
 
MoparMark91 said:
Cause I'm buying a standard bore 340 and I've heard some guys go .30 .20 and even .60 but I was hoping to bore it .30
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Hopefully you are actually not meaning .300" overbore LOL. BTW, several of the common performance pistons for the 340 (KB, ICON) are available in .020" oversize with a few weeks of lead time.
 
Ceedawg said:
Because everyone wants a thousand DIFFERENT blocks! No manufacture will attempt that. Let's settle on one size and work around that.
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Wasn't Mopar selling new improved 340 blocks a couple years ago for 7,000 dollars. Swear I saw them in the Mopar section of a Summit catalog.
 
dartfreak75 said:
I have always been fascinated by small blocks. When I was 16 i was addicted to old muscle cars and fell into the bigblock hype mostly because that is what I always saw in hotrod and car craft and mopar muscle magazines. I went to the local drag strip for the first time with a friend. It was gear jammer weekend. Of course I was all about the mopars but there was a 66 mustang that lined up and took off and he stood on the back bumper for over half the track I dont remember his et but I was blew away when he parked in the pits I went over and was talking to him he was running a 289 4speed. It blew my mind that such a small engine could be so violent. Then there was another guy with a 340 duster wheel standing it was just the coolest thing ever and ever since then I have been all about the small blocks.
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Making more with less is always cool,most v8s can make a whole bunch of power built right then add enough gearratio and stuff starts happening :)

I hear you,its easy to get carried away by all those cool stories,but we own what we own and thats what we get to work with.
 
Sorry about that guys. A member has been removed from this thread. I have deleted a few posts to clean things up a bit but there are some quotes still there. Carry on with your conversation.
 
I see 340’s quite often but not for the 50.00 I usually pay for a 360 short block. I have one here but it’s cracked down low and would be ok for Racing after a short fill
 
pittsburghracer said:
I see 340’s quite often but not for the 50.00 I usually pay for a 360 short block. I have one here but it’s cracked down low and would be ok for Racing after a short fill
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^^^ X2
There's nothing magical about the 340, except the asking price. Apples to apples built the 360 is a better performer anyway.
 
moper said:
Because there's no money to be made doing it. We're all cheap asses.
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Unless you are doing a numbers matching car there's no need for the 340 block. A 360, punched to .040in and a 318 crank will get you there. But why do that when you can do 368 ci or more with the .040 bore and a stroker crank. Just thinking.
 
Steve Koziatek said:
Unless you are doing a numbers matching car there's no need for the 340 block. A 360, punched to .040in and a 318 crank will get you there. But why do that when you can do 368 ci or more with the .040 bore and a stroker crank. Just thinking.
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FWIW, a 273, 318 or a 340 crank will not drop in and work in a 360.
 
rumblefish360 said:
FWIW, a 273, 318 or a 340 crank will not drop in and work in a 360.
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Nope, they won't. But if I remember correctly years ago they did make bearing to correct that problem. Or you could jump up to 408 ci with the 360. Might cost less than a 340 block. And availability is on your side.
 
I remember that! Bearing? No. There was a steel cap insert that was machined to size with the caps. Short lived expensive item that had few buyers.
 
If you gotta have a 340, SCAT can grind you a 360 main crank with a 340 stroke. Then bore your block to 4.04.
 
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