I was just wonder if was going to build up an ls vtec do i need to change out the rods and piston from the block or could i run with the stock internals until I buy better rods and pistons i have a b18a block panning to put a 97 gsr head on. Would it be safe if i dont upgrade the internals parts yet. Im probably gonna test run the car like 5 or 6 run at the track only and then drive it daily until i purchased better parts.

 

dont rev a stock bottom end lsvtec above 7k and you should be fine

 

You won't need to upgrade the bottom end internals to do the vtec conversion. I'd do a compression test and a leakdown test on the motor before you pull the old head off to see what kind of condition the old motor is in.
You said b18a, so if it's not rebuilt, 9 times out of 10 it's got some mileage on it. Just a precaution before the head swap.
And if you end up doing the conversion don't rev it to all kingdom come if you want it too last as a daily driver. There are alot of opinions on where you should redline at. Search around and decide where you think you should shift.
Good luck

 

i know hes talking gsr head but whats a b16 head gonna redline at and when would vtec kick in? -ps im new to the b series

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lswantsvtec &raquo;</TD></TR><TR><TD CLASS="quote">i know hes talking gsr head but whats a b16 head gonna redline at and when would vtec kick in? -ps im new to the b series</TD></TR></TABLE>

same thing applies

 

what im wondering thho is if you put a b16 head on an ls and you only rev to 7 grand to be safe how much vtec are you gonna get? basically is it worth it to make ls vtec without forged internals?

 

https://honda-tech.com/zerothread?id=1676914


everybody interested in lsv should read this

your car will still be faster no matter what you do to the bottom end but i do recommend rod bolts so you can rev higher(8k-9k) I recommend high comp pistons as well (unless you see boost in your future)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lswantsvtec &raquo;</TD></TR><TR><TD CLASS="quote">what im wondering thho is if you put a b16 head on an ls and you only rev to 7 grand to be safe how much vtec are you gonna get? basically is it worth it to make ls vtec without forged internals?</TD></TR></TABLE>

you'd be better off boosting instead of doing an lsvtec with a stock internal b18a/b

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">

you'd be better off boosting instead of doing an lsvtec with a stock internal b18a/b</TD></TR></TABLE>

AND RUN IT ON 7-8LBS AND YOU'LL BE GLAD YOU DIDNT DO LSVTEC....TOO MUCH TROUBLE WITH VTEC