what is the dfference between b16a1 b16a2

crshbndct · 21st March 2002, 01:23 PM

How can I tel teh diff. between b16a1 and b16a2

heard that for b16a1 on the valve cover, it is big DOHC, Little VTEC
and for b16a2 it is Big VTEC, Little DOHC

Cement · 21st March 2002, 01:35 PM

You should know, you used to have one hehe

B16A2 has large 'VTEC' and small 'DOHC' ... B16A1 is big DOHC small VTEC.

B16A2 has different inlet manifold.

B16A2 has different throttle body.

B16A2 will have the water temp sensor on the thermostat housing as opposed to on the back of the block on the B16A1.

Errrr if you have the head off the pistons on the A2 will be 'P30' as opposed to PR3 on the A1.

Easiest : I am pretty sure that the B16A2 block numbers start with '14'.

Hope that helps

Edit : Also the B16A2 will use 1 oxygen sensor down by the exhaust flange as opposed to two up in the 4-2 part of the manifold on the B16A1.

Also if its a B16A2 in a DA like you used to have it will still have a cable trans but it will be YS1, all the rest of the B16A2's should be mated to hydraulic boxes.

Hope that helps some more

GR81 · 21st March 2002, 01:37 PM

http://asia.vtec.net/topics/b16aver.html
everything you need to know =P

crshbndct · 21st March 2002, 02:42 PM

well i never got to look at the valve cover on a b16a1

but ive figgah'ed it out now

21st March 2002, 01:23 PM	#1 (permalink)
crshbndct Senior Member 6,000rpm (Max Torque) Join Date: Jan 2002 Posts: 2,260 Location: Whangarei	what is the dfference between b16a1 b16a2 How can I tel teh diff. between b16a1 and b16a2 heard that for b16a1 on the valve cover, it is big DOHC, Little VTEC and for b16a2 it is Big VTEC, Little DOHC __________________ ce1 accord wagon 76 ke35 coupe, 1ggte going in.

21st March 2002, 02:42 PM	#4 (permalink)
crshbndct Senior Member 6,000rpm (Max Torque) Join Date: Jan 2002 Posts: 2,260 Location: Whangarei	well i never got to look at the valve cover on a b16a1 but ive figgah'ed it out now __________________ ce1 accord wagon 76 ke35 coupe, 1ggte going in.

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21st March 2002, 01:35 PM	#2 (permalink)
Cement Team NZH: Retired 6,000rpm (Max Torque) Join Date: Jan 2002 Posts: 1,686	You should know, you used to have one hehe B16A2 has large 'VTEC' and small 'DOHC' ... B16A1 is big DOHC small VTEC. B16A2 has different inlet manifold. B16A2 has different throttle body. B16A2 will have the water temp sensor on the thermostat housing as opposed to on the back of the block on the B16A1. Errrr if you have the head off the pistons on the A2 will be 'P30' as opposed to PR3 on the A1. Easiest : I am pretty sure that the B16A2 block numbers start with '14'. Hope that helps Edit : Also the B16A2 will use 1 oxygen sensor down by the exhaust flange as opposed to two up in the 4-2 part of the manifold on the B16A1. Also if its a B16A2 in a DA like you used to have it will still have a cable trans but it will be YS1, all the rest of the B16A2's should be mated to hydraulic boxes. Hope that helps some more

21st March 2002, 01:37 PM	#3 (permalink)
GR81 Team NZH: Retired 5,000rpm (VTEC Power!) Join Date: Jan 2002 Posts: 1,462 Location: Outside NZ: Canada	http://asia.vtec.net/topics/b16aver.html everything you need to know =P