lsv or b20v

B16, B18, B20
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lsv or b20v

By 93hatcheg
- Fri Apr 23, 2010 5:45 am #189469 i want to see a poll of who thinks what is better. i just short of hate b-series motors but wanna know. i know b20v is biggger but have heard the are not as reliable or as aggressive and strong as the lsv. let me know thanks!
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By forcefedEG
- Fri Apr 23, 2010 12:48 pm #189494 bottom line is theres no replacement for displacement... i have been around alot of lsv's and b20v's... i have found the b20v's pull harder, as far as reliability, i think there both the same, id have to lean more twards the b20, a good friend of mine had a b20v with a bone stock bottom end, he revd it to 8500 for ever and it never came apart, and never gave a sign of coming apart never burnt oil or anything... he ended up sellin the car after he tore the motor down to do a high comp. build... honestly i would take the b20v over the lsv, but if i had a ls bottom end setting there and a vtec head.... and would have to go buy a b20 engine to do a b20v, id just do the lsv... the money youd spend chasing down a b20 bottom end you could spend somewhere else in the engine... but thats my opinion... alot of people on here dont like either... but i build everything i have and do everything i have myself, so how long it holds up isnt that imporant to me as long as it runs good... 8)

i will say my poormans r pulled on my friends b20v before he got it tuned... :lol: and once he was tuned i was still on a chipped p28 and he only got me by a fender...
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By Chance
- Fri Apr 23, 2010 12:55 pm #189503 LS, IMO is better. Because, if you decide you want boost down the road it will hold up better than the b20.
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By forcefedEG
- Fri Apr 23, 2010 1:06 pm #189512
Chance wrote:LS, IMO is better. Because, if you decide you want boost down the road it will hold up better than the b20.


b20 sleeves are known to be weak for boost... and thats a fact...
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By Chance
- Fri Apr 23, 2010 1:09 pm #189515 Zactly.
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By forcefedEG
- Fri Apr 23, 2010 1:11 pm #189516 i was goin off of na to na, but the sleeves are something to think about...

theres way more factory piston options for a ls as far as uping the compression too... :thumb:
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By 93hatcheg
- Fri Apr 23, 2010 2:41 pm #189539 yea i probably wont do iether cause im dont like the b-series im more a H & D guy lol. but i may be comin across a cheap lsv and pick it up for the hell of it. the cylinder walls on the b20 are what concerns me, cause who knows what else is weak on those motors . the ls stock i know is quite the trooper so thats what i was basin it off. what do you think you would pull d=from both those motors stock? HP wise.
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By forcefedEG
- Fri Apr 23, 2010 3:07 pm #189542 the only real weak point on the b20's in the sleeves, the crank and rods are the same from the ls, the only diff is the pistons for the b20 because of the 84mm sleeves... is say either one built right off of stock parts should be close to 200 flywheel hp, and seeing more torque from the b20...
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By That One Dude
- Sat Apr 24, 2010 12:47 am #189674 As far as I know, Honda doesn't have any other 84mm pistons aside from the B20 pistons. So you'd have to go to the aftermarket for that.

The LS/VTEC "can" be pumped up to 200bhp (flywheel or crank horse power) with the right parts. ITR head, CTR cams, ITR pistons, LS crank and rods, JDM ITR 4-1 header, ITR IM, and tune could get you close. You'd be better off buying a JDM B18C(R) IMO.

Only problem I see is the pesky oil plug leak. But that doesn't really do anything for power. I've also heard that LS/VTECs run a little hot, but I've only heard that from two or three people, so don't take that as truth.
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By forcefedEG
- Mon Apr 26, 2010 1:02 pm #190131
That One Dude wrote:As far as I know, Honda doesn't have any other 84mm pistons aside from the B20 pistons. So you'd have to go to the aftermarket for that.


the only thing you could do is put the b20z pistons in the b20b block to gain more compression.... but those are the only 2 options for a b20 from honda...
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By That One Dude
- Tue Apr 27, 2010 12:54 am #190261 That's kinda what I was thinking.
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By Apexracing
- Tue Apr 27, 2010 3:59 am #190312
That One Dude wrote:As far as I know, Honda doesn't have any other 84mm pistons aside from the B20 pistons. So you'd have to go to the aftermarket for that.

The LS/VTEC "can" be pumped up to 200bhp (flywheel or crank horse power) with the right parts. ITR head, CTR cams, ITR pistons, LS crank and rods, JDM ITR 4-1 header, ITR IM, and tune could get you close. You'd be better off buying a JDM B18C(R) IMO.

Only problem I see is the pesky oil plug leak. But that doesn't really do anything for power. I've also heard that LS/VTECs run a little hot, but I've only heard that from two or three people, so don't take that as truth.


they would run hot do to the block not having oil squirters for the pistons, and ls rods are grenades, if your going to get that into a motor, for the love of god dont cop out on the rods, or pistons for that matter.
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By forcefedEG
- Tue Apr 27, 2010 12:52 pm #190368 personally ive never seen any of my lsv's or the b20v's ive been around run warm.... :?
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By That One Dude
- Tue Apr 27, 2010 11:49 pm #190502 The oil jets in the B18C1 block help only slightly with the temperature of the pistons. If they helped any more than that, why wouldn't the ITR block have them?

Yes, the LS pistons are not the greatest, but they are made of the same stuff as the GSR pistons. I know several people running turbo'd stock GSRs pushing at least 350fwhp with no problems. I also knew a guy who was running 300ish on a stock LS with no problems. He sold the car and I haven't heard anything from him or about the car since then.
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By forcefedEG
- Wed Apr 28, 2010 1:05 pm #190593
That One Dude wrote:The oil jets in the B18C1 block help only slightly with the temperature of the pistons. If they helped any more than that, why wouldn't the ITR block have them?

Yes, the LS pistons are not the greatest, but they are made of the same stuff as the GSR pistons. I know several people running turbo'd stock GSRs pushing at least 350fwhp with no problems. I also knew a guy who was running 300ish on a stock LS with no problems. He sold the car and I haven't heard anything from him or about the car since then.


x2 kinda what i was thinking :?
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