hey whats up guys just wanted to know this because im doing this swap..... will a head from a b16 with way more compression do any damage to a used block and internals??? the block has 10k miles on it just wanted to know if any damage would be done to it thanks.

how much is way? that could help and i asume you mean a b16 block too right?

what kind of block r u talking about ? theres no block that will give you a crazy cr just by switching to a b16 head.

yeah it is the stocl b16 block with the stock used internals and i think the head is 11 or 12:1 somethin like that

so are they the same block and head from the same motor or a different block from a different motor and a different head from a different motor.

you cant get a cr from jsut a head. you get the cr by combining that with a block. a b16 head and block will give you either 10.4 or 10.2

is the head stock ?

The head could be milled, or have high compression valves which raise it by like .2 or so, not much. It won't matter either way. You usually get more compression with pistons not the head. Make sure you know what cams are in the head, if it's too wild a cam you might need CTR pistons and tuning, or just tuning.

ok well the head has been shaved down some , it has comp stage 3 cams, type R retainers, skunk 2 springs, its been port and polished and it has a valve job of 4 degrees the head is from a b16a first gen. and the block is from a b16a 2nd gen.

It should bolt right up, but if I were you I would put high compression pistons in. Try to get 11.5:1 compression. You will also need to get tuning done, and better fuel delivery, possibly injectors and a fuel pressure regulator. The idle will probably never be very consistant. I'm not sure about comp cams but the stage 3 from skunk2 are for race applications and not good for the street. After all that your car will be making some pretty good power, and 10,000 rpms shouldn't be a problem with good air flow.

when hes regular driving, hes not gonna feel the effects of that cam. only when he hits vtec. should be a problem. check pistons to valve clearance, thats important

when hes regular driving, hes not gonna feel the effects of that cam. only when he hits vtec. should be a problem. check pistons to valve clearance, thats important

S2S3 cams have a larger secondary and primary lobe, they do have a bit of lope to them at idle. I had BC4's on my car for a while and it needed to idle at 1000+ to keep it from dying. Sounds like a rotary, brap-brap-brap-brap.

i keep forgetting which one is primary and which one is secondary. i believe the primary is the non vtec lobe. well anyways low cam looks almost the same as stock, it should be able to hold a smooth idle.

but i doubt he will have the cr to run cams this big. you hsould look into the stage 2 cams

Hey guys just finished the swap today sounds nice everything went out good exept.............. the head gasket was bad leaked the expensive synthetic oil out damn o well also upgraded the fron wheel hub aseemblys to a 95 gsr everything turned out perrty good ill post before and after pics if u guys want me to

postem

How the hell did you leak oil all over with a blown headgasket? Chances are if a gasket blew and you're only leaking oil, it isn't a head gasket. Might want to know these things before you try and do something complicated like a motor swap :eek:

probably his valvecover gasket

Yeah check the valve cover gasket first. The head gasket could leak oil but it would normally bust between cylinders, not on the outside. Clean up the motor and then run it and just wait till you can see where the oil is coming from. If the head gasket busted on the inside you would have oil in the coolant. I did that to my old Nissan motor.

hey yeah the head gasket was the wrong one it was for an acura we fixed it and everything was running good until my distributor went out. I mean the car is red lining at 9500 and yeah the distributor went out well atleast thats what the guy said.

Your motor must not be stock if you're running up to 9,500rpms. What is done to it?

ummmmmm ok the block is stock it only has the ctr pistons ghe head is fully built port and polished,titanium retainers, skunk2 dual springs, ctr cams, the head is shaved down and it has a valve job of 4 degrees
fucked up thing is that its already messed up im perrty sure that a piston got loose cuz it chewed up half of my spark plug and theres a hole on the piston so if u guys know what could it be and what are the parts that im gonna have to fix plz tell!!!!!

Piston must be coming too close to the spark plug. I've never heard of this happening though. That's a pretty nice motor. You should get it dynoed when you work out the bugs. I built my buddies b16 and he redlined at 10,000rpms and made around 200whp. It was a kick ass motor. I want to make my LS/Vtec rev to 9,000 reliably which shouldn't be too hard. Nice motor though.