Yoooo, so I know how much you guys hate on people asking questions because everything’s been answer a MILLION times (I get it) but bare with me?

I have
A complete stock b18b1 motor
A complete stock b18c1 motor
And a GSR tranny

I’ve been heavily leaning towards the LS/VTEC side of things just because it sounds very interesting. However, I will be daily driving this car and reliability and all that, but I wanted to know is it worth it? Should I just go with the complete GSR swap? Or go Non-VTEC? I have plans on boosting in the future but not for another year or so.

I will be building whichever motor I go with so I can have some fun street time with it 😁
The GSR head was already ported and polished and I do believe the LS block was Honed

Any suggestions?

(D16z6 in the hatch is knocking so I gotta do something)

 

You’ll get many different answers but IMO, gsr head and block, ls crank, aftermarket (forged) rods and pistons

 

This is the ultimate combo. You get the extra 2mm stroke without needing an LSVTEC kit for oil plumbing to the head.

Otherwise, if you want to keep it simple, there probably won't be a huge difference if you just use the straight 100% GSR motor.

 

I concur.

 

That was also another big consideration. (From what I’ve read) the LS crank has more of an even torque curve than the gsr? And with the rods the only thing I’m worried about is getting them and then having clearance issues

What do you say different? I am open to all opinions and ideas because I feel as if I have hit a serious wall with this build. I bought both motors (GSR came with 1000cc injectors, aem fuel rail, vms racing breather box, LS half shaft and axles for swap and aem cam gears) and the tranny for 1500. My original plan was the LSV but I don’t know if I’m willing to spend the extra money for conversion on top of what I will already be putting into the motor. I appreciate all of you guys for the help.

 

if you have both
keep it SIMPLE
GSR forge piston rod combo

but if u going all out type of thing
lsv all day

ps
people say the more hp crank thing
i say whats a few tq when ur already high hp torque

keep it simple
why restrict a minor part vs fully vtec
if u really annoyed of the better torque

gsr with ls b20 crank
best of both worlds
but honestly now ur leavingg a gsr crank on the side

but really if ur doing a basic build just do the gsr turbo all the way dont overcomplicate

if ur going crazy high horsepower numbers thats when u do gsr with ls crank
and if u cant find a vtec 1.8 block thats when u do the lsv/b20v
another edit
both is reliable 100% lsv gsr gsr stroked b20v
as long as its assembled correctly and tuned correctly
broken in correctly
and no faulty wiring / fuel delivery/ driver error/ its perfectly fine

you are probably thinking too much on which route

do the simple proven forge piston rod combo stock head turbo css then see how you like it. then start prepping to upgrade for cylinder head upgrades

 

If you already have a good complete GSR, I would use that 100%.
Mix and matching cranks is just asking for complications when you dont need to. I personally try to keep the block, crank, and girdle all together since they have broken in together. Much less likely to have issues with bearing tolerances.

 

You're overthinking this quite a bit. And JR was indicated he agreed with Piggy and myself (GSR engine with LS crankshaft & LS spec rods). You would not have any clearance issues.

That being said, you don't seem super comfortable with this level of complexity and have a lot of doubts. At this point I'd highly advise just keeping it simple and using the 100% straight GSR motor. For you, I don't think it's worth the 2-3% difference (literally) the slightly more in depth build would require.

 

This is probably best route to go if you want to keep things super simple. Just straight gsr. Like chance said there is no clearance issues with ls rotating assembly in a gsr block, they’re a direct fit (that’s exactly what I and many others have done).

With what you have the lsv wouldn’t be worth it having to get the conversion kit let alone oil and water pump to support it when you already have a vtec block. Plus you would have the main girdle and oil squirters.

 

Stay GSR because you won’t need the extra torque once you go turbo.

 

I’m using a b18c1 in my personal car and I’m about to dyno tune a car I just finished building this weekend. This car has a B18c1 block and head while using a B18b1 crank/rod / pistons . I’m curious how this combo works myself