Monty, I have a brand new 421B that I got off a friend for real cheap. I was wondering what could be done to it to bring it more up to date. Would it be worth sending it to you to have it updated if possible. Right now it has a standard plug head in it and I would like to put a turbo head on it, and maybe change the crank and bearings out to the new stuff that is out if possible. Let me know what you think.

Thanks
Nick

one of the biggest improvements would be the carb then the front bearing , nothing wrong with standard plugs if the combustion chamber is reshaped

is it the 6 bolt head or 4 bolt head?

I wanted to run turbo plugs becasue the rest of my nova motors are running them. That was my main reason for it since I already have a stock pile of turbo plugs. As for the head bolts go I wanna say it is a 4 bolt, but I am not sure I dont have it in front of me and I just got it and wasnt paying attention to that. What about a silicon filled crank would that be possible for it?

ya on the silicone but that crank probably isnt drilled , you could go with a 15009 crank that is and you would see more gain

Cool thanks for all the info. What part number would I need for the Turbo head? What is part number for the updated carb. Or would it just be better to send it up to you to have everything done to it?

Thanks

i can probably save ya a few bucks

if it is 4 bolt head part # 28002 for underhead and 24063 for carb , amain those parts would be around 125$

completely up to you if you want to send it here bro

Thank you very much for all the info! I appreciate it. Time to build me a little frankenstein Nova motor.

to me they are all parts and pieces and i build them the way i want them , X7 is one example

i been looking to buy the strongest .21 eng possible for racing and planned on sending it to get modded, but i also want to purchase a .28 and get it modded as well and i have the OS.28 already so i was looking at the fusion X.28 for strait bashing and was wondering if anybody have any knowledge on that eng far as performance and is it more powerful than my OS or is it about the same , to tell the truth OS engines seem to be over rated IMO the way they breakin so easy kinds of make me scared it not going to last , so i just asking for honest opinions please help me...

Just wanted to give a shout out to Monty, although I'm not using Monty's engines I got to witness his customer service first hand this weekend and will tell you he goes above and beyond what should be expected from any company, absolutly first rate. I am in the learning stages of racing and prefer to do my own thing but could see myself becoming a cusomer in the future should I find myself in need of a crankshaft inducted two stroke internal cumbustion technition.

I can tell ya the X28 is absolutely ridiculous!

Its based off the old 528x platform with some better parts

nice Hans

Thanks for the kind words brotha

A c.i.t.s.i.c.t.

Hey Monty, what are the carb settings for race tune on a plus4C? I want to see if I am in the ball park with were I am at. Also does the OD 97t work as well as the c6tgc?

Thanks very much for your relpy the X28 seems like the next 28 im gonna get, but i was wondering what is all the improvements that was made to it is it faster or just better parts, i plan on getting modded for top end anyway, but that crossed my mind more than once and i could find any info about that subject any where....

It has a fully cnc machined out of billet stock piston, the new carburetor , 17011 front bearing and a factory modified p/s set

as far as .28 size engines go it is a thoroughbred