Jeza

Gday, im in year 12 and i've got an old HQ ute. It's got no engine or gear box in her but for starters im lookin at a 202 straight six we got lyin around and an aussie 4 speed. Now i've heard from a lot of people that the 186 is better than a 202, and I've also been told that the only difference is the stroke not the bore so you could put 186 bits in a 202? whats your opinions on it? Is it worth keepin the 202 or makin good 186. any help will be appreciated

BTW i do know this is a V8 site but I cant get my hands on a V* yet lol

Smitty2

mate

stick with the 202 and aussie to start with

good simple and cheap

oh and cubes count...which is why the 202 is the go
and Holden thought so too for the 'Q

skidmarx

i duno wat all the fuss is, iv had a few 202's and never had a drama with any of them, they go well with the right attention

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ROSENBERGER

I got my first HQ 202 in 1980. and i thought they were a unreliable rubbish motor even in std form, from all the stories i heard about them dropping valves burning valves and doing big ends. so i had 173 motor was on hand. i thrashed the day lights out the 202 and could not blow it up. sold it with 98000 miles up. motor was spot on. i think it just comes down it servicing them. i seen a lot wombats drive around with a boggy radiator and don't change the oil & plugs, back then. plus there are more 202 motors in aus than any other.

Jeza

alright kool thanx for that ai. Hows the fuel economy on em? also this hq we bought has got a v8 diff and sway bar in it, will the ratios be ok for runnin a six?

wabbit

without knowing what ratio the diff is, it's a bit hard to tell

but, I've driven basically stock 202s with Aussie 4 speeds and 3.08 diffs and they're fine.
your intended application is important, too. highway/urban/drags/etc

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Jeza

yea she'll just be 4 cruisin around and to give shit on the farm, she'll be rite

quiksilv3r

A common swap is the 186 heads on the 202. Bumps up the comp a bit and the combos seem to go well.

SOmething to think about down the track

Jeza

sweet as cheers. I remember hearing somewhere that you could stroke 202 with a ford crank and rods, does this have any element of truth to it?

Smitty2

yeah...the myth is true

a ford crank in a Holden block will give you about 220-230ci depending


problem is nowadays finding someone who knows it
its NOT a drop in/bolt in..it requires some machining
and the balance job is a bugger

hth

Smitty

Smitty2

good swap on a red 202

don't do it on the blue/black 202s
you lose the benefit of the 12 port head

Jeza

Yep, good thing i got a red, what ford crank can be used 2 stroke a 202?I'll see if i can get a hold of one

edit: I just found a site called prostroke that does a 234 conversion, but i cant afford 2-5 grand lol. Might go for the cheap approach

Davo 351

ford 221 crank can be used, good speedway trick, but if u havnt got 2 - 5 grand to spend its not worth doing because it will cost u near on that.
my boss did the 221 crank into a 202 to make it 236ci, he had the crank cut in half, reversed, machined and balanced. its a prick of a job for a good machinist so... i wouldnt really call it the cheap approach.
just stick with the 202, chuck a 350 holley on it and sum extractors and an exhaust and shell give ya years of fun, specially in a ute.

cheers, Davo.

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allports

Kit Cullen in QLD makes stroker cranks for them PM me for his Ph# his crank looks like a counterweighted blue/black crank.
The 221 crank req a lot of work and $. Plus you need a Ford 250 piston and too many fraud parts are a drama. Lol.

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Jeza

hehe thanx davo and allports. i was just looking at my engine today. We painted over the red in blue, but then realised that it had 3.3 written on the block (202ci) so seeing as its a metric and not imperial measurement like 3.3 l instead on 202 ci, could this originally have been a blue engine?