Superjet 62t 760 ada head help

[Taff352y]

Hi, long story short, seized my standard 701 superjet. 6 years on I have managed to get a short block 760 with an ADA head and standard duel carbs. If I run this with a standard superjet exhaust system what will I need to do with the carb setup? Any help or advice would be appreciated.

Thanks

 

[bored&stroked]

What exactly are you asking? If you need jetting changes to the stock dual 44's?

 

[Taff352y]

Hi, yes that's what I'm asking. Sorry if I wasn't clear. Any help would be appreciated

Sent from my SM-N950F using Tapatalk

 

[Storbeck]

wait, are you running the complete 760 motor (top end, carbs) with the oem superjet exhaust, or are you just putting the 44mm carbs on your superjet 701 motor?

The 760 top end is different than the superjet top end in more ways than just the bore, the porting is different among a few other things.

 

[Taff352y]

Well hoping to drop a 760 motor in my old superjet, complete with carbs, but using stock exhaust and electrics etc. Here's a pic of the motor. It worked out cheaper to buy this.motor than have the old one rebuilt.

Sent from my SM-N950F using Tapatalk

 

[bored&stroked]

I'd run it as is and see what happens. It shouldn't be too far off

 

[Taff352y]

Ok, thanks mate. Anything else to look out for?

 

[X2Kid]

Exhaust manifold ports will not match and the 760 cylinder uses 10mm bolts to mount the manifold, not the 8mm of the 701.

 

[X2Kid]

If you're on a tight budget and up for some bodging you might like to place a 760 exhaust gasket over the stock exhaust and dremel it to match. Bare in mind if you work your way into a water passage it's game over. Done worse in my yoof.

 

[Taff352y]

Exhaust manifold ports will not match and the 760 cylinder uses 10mm bolts to mount the manifold, not the 8mm of the 701.

How can I get around this please?

Sent from my SM-N950F using Tapatalk

 

[maxboost]

Cheapest way you’d to get out the Dremel, or you can buy a 760 mani for a factory b and run a real pipe

 

[X2Kid]

You can put Time-Serts/Helicoils into the cylinder to bring the threads down from 10mm to 8mm so the manifold can bolt straight up (after matching the ports, obviously). I believe the consensus these days is that Time-Serts is the better method. Doubtless others will chime in with their views to help you make a decision.

 

[Taff352y]

Exhaust manifold ports will not match and the 760 cylinder uses 10mm bolts to mount the manifold, not the 8mm of the 701.

I've just checked and the manifold matches up and the barrels from my old engine is exactly the same

Sent from my SM-N950F using Tapatalk