working the engine

[jason martin]

hi there i heard from someone that a 186 head will fit straight onto a 202 block is this true and will it give me more power at wheels?

[IvanTheTerrible]

I thought 2002 was a slightly different block. the cams are definately different.
186, 161 and 149 are the same. Put a 149 head on a 186 and you could have some fun.


Ian

[Guzzoline addict]

A 186 head wont fit a 202 blue or black block(the bolts line up but the water jackets dont)It will fit a 202 red but theres no differents between the two except the the 186 head has older style rocker gear.

[NZVK308]

I also though the 186 used a solid cam and lifters/adjustible rocker gear where the 202 used hydrolic

[Darren_L]

yeah adjustable rockers on a 186, but not sure if they have a solid cam though

[Captain Kermit]

I think you can put a 173 head on a 202 to increase the compression ratio, which may be what you're after.

[jason martin]

i've never heard of a 173 what are they in and where could i find one?

[jason martin]

i am looking to do up my 202 blue motor what initial things can i do without doing anything major to start off with? i'm thinking high performance plugs,new leads and what sort of air filter will help and what about a coby exhaust?

[leigh 7005]

173 blue motor is in the vh

[Captain Kermit]

173 is the 2.85L carb fed 6 available in VH and VK's.

[benny999]

173 is the 2.85L carb fed 6 available in VH and VK's.

there not in th vks

[Trav001]

external stuff: tripple side draft carbies
Remove Power steering (if you have it) dont need it on a VH because it takes power to run the pump.... <----this ones pure theroy by the way
Thermo fan
and good set of extractors

Internal:
Bore out the cylinders
Deck the head
Oversize valves
Wild cam
Solid lifters
Roller Rockers
Performace Valve Springs.

In Brockys A30 Runing a holden six it could squeeze out 185kw, just some figures to run with

[neet_wagon]

Black 202 block and head, red 202 steel crank, starfire rods, yella terra rockers, stainless valves, ACL HQ racing pistons, hardened pushrods, big lumpy cam.

That'll put a smile on your face.

Pure HQ race engine there.

[Trav001]

Pure HQ race engine there.

What fuel injection setup do they run on those?

[neet_wagon]

They dont run fuel injection that im aware of.

Redline manifold and a holley 350 would be my thoughts.