oke guys i got a sweet deal on a b16a clean as hell tho guy used parts to make a lsvtec motor so i got a clean b16a bottem end and it has p30 pistons how can i tell what year the block is o also the motor has no vin near the oil pan and there is o threads in the holes so it never had a vin from factory only has block s/n i wanted to know i got 2 motors i got a 99 sir motor b16a2 ad i got parts to make a new b16a motor what motors better also got a integra b16 head going on the b16a block i got what is better ps im depateing on ctr pistons in either motor need to know what motor will be safer

 

bump

 

If its a jdm b16a it's not going to have a vin plate. Also the stamp for the year of the motor is on the head as far as i know.
The bottom ends of the b16a and b16a2 are relatavily the same. Its the head that makes the difference in power. You can mount whatever b seres vtec head you want on the b16
the gen.2 sir b16a has a little different compression rate which is why it has 170hp in comparison to the 160hp us b16a2 and gen.1 b16a

 

USDM B16A has pistons with 10.2:1 compression and will be stamped B16A_

JDM B16A 2nd gen has P30 pistons, 10.4:1 compression, stamped only B16A

otherwise, they are identical

 

both bottom ends will work the same for a pct/ctr piston setup.
I've had 2 buddies that did the pct/ctr piston in a b16, pretty good gains. Not sure if you know but you'll have to modify your b16 rods, like shave a bit off the small end of the rod to fit the ctr piston.

These bad boys are nice
hey i can ship these out with the valve cover too if you like :p

 

the last generation of b16(a2) comes with oil squirters that cool the piston.
the is what you dont get from the b16a.

this is a trivial difference and you wont know the difference between the two otherwise.

 

Both obd0 b16a's Ive had, had the oil squirters. Ive actually never seen an early block that didn't have them.

 

x 2

 

super intrested in thoes

 

you know what now that i think of it your all right.
i was thinking of the diff between a vtec block and an ls block....
sorry.
running type r pistons in your b16 will wake your motor right up...