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heart transplant

hi all posting this question purely coz i think someone else here would have already been down this road. i have a hr ute, and i want to change the engine. there is currently a red 186 in it with what i think is a yella terra head (stage unsure). i also have a 202 in the shed. now i will be rebuilding either way ( cams,rings,pistons,rockers etc) should i bore the 186 to a 192 and add the good stuff or should i focus on the 202? maybe even find a VK fuel injected 202, however would this mean alot of alterations?. also could the head off the 186 go on the 202 would this be a good idea? i want a pretty stong engine in the finish, so which way would be the best to go? any help would be great, thanks.

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If you put a VK engine into the HR, it will need to be made to match the emission requirements of a VK. How ever to bolt the VK head and EFI onto the old 202 you have would be no big deal. That way the HR would only need to meet it's original pollution requirements. As for which motor to build. Personally I'd go the 202. If you bore the 186 .060 it will be running 202 pistons anyway. So they will cost the same to build.
However, if at a later date you choose to fit EFI. The 192 wont be as suitable as a 202, due to the VK ECU. You may want to check the prefix on the 202 before you go to far, just so you know what it came out of and if it is a pollution motor or not.
Cheers.

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Campbells Shed
Postcode 3147.

Hi i was just reading your comments,were do you check the prefix on the motor,to see if its pre pollution or not
cheers

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Get your engine number, the first letters in the number are the prefix. Post them up and I will tell you what it has come out of. Or there is a section in the holdenpedia that will tell you.
Cheers.

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Campbells Shed
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thanks for your help,i have been away from the old holdens for a while,kids grown up misses ran away so now im back to restoring a hr prem the numbers i can see are vl74705,im also chasing a 350 holley and manifold for the 202 blue,if you know were i can get one it would be appreciated.

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The VL prefix is for a Commodore 202. So that would require you to meet emission standards for a commodore. Above you mentioned a 202 blue. If it is a blue, you can get an adaptor to fit a holley where the varijet carb was. Personally I reckon you should give the Holley a miss. If it is a blue, use a weber. If you've got a red motor, use a W.W Stromberg.
Cheers.

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Go the 186 and put the Holley in the wheelie bin where it belongs.

My 2 cents

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