Re: Mopar 273-4bbl Combo
 

Maybe i did not make my question clear. did you modify the 2 barrel carb yourself or have a third party do it for you

Re: Mopar 273-4bbl Combo
 

X2
Matt Steen @ 507-532-2436

Re: Mopar 273-4bbl Combo
 

Is Matt the guy with the white Valiant that runs in SS/K? I think I saw him a number of years ago at Ennis. Not sure how he would like me calling him for info when I'm having a friend/machinist/engine builder in Tampa build my stuff. I guess the worst he can say is to bugger off.

I was sort of hoping to build a dime rocket, or at least a quarter rocket. It does look like Bushmaker's got it figured out. Yes, the ports are tiny, about the size of 302 Ford heads (at least the 1960s stuff I've seen). I thought it would be a good entry into Stock. It doesn't need to fly and compete with the CJs, COPOs and DPs. It would be nice to qualify for divisionals and the national event at Ennis and maybe Houston or the next nearest track.

Thanks to all for your responses and information.

Re: Mopar 273-4bbl Combo
 

That is a VERY good combo. One of my good friends had to run them at Vegas in class, and his car is by no means a donkey. He told me he had NOTHING for them. Bushmaker has done this for a year or 2, he knows whats up. ;)

Re: Mopar 273-4bbl Combo
 

can anyone suggest a cam for the 2 barrel combo?

Re: Mopar 273-4bbl Combo
 

I finally got in touch with Matt today. We had been playing phone tag for a few days. He gave me the advice of using a 318 block (he preferred an X block, not many of those around with the unbored 3.91" bores) and sleeve it down to 273 bore sizes. I think I agree as I was talking to my machinist in Tampa and he did a quickie sonic check and got wall thickness in the .160"-.180" range with standard bore blocks. It looks like Melling has some 1/8" wall sleeves that would fit in a standard bore 318 that would get them down to NHRA specs. He also seemed to prefer the 302 heads over the 920 heads. He is building a 273 stocker engine now. Matt had run the 273-4 engine as a stocker many years ago and said it was making around 330-340 HP back then.

So it looks like we either hard block the 273 blocks or sleeve a 318 down.

Re: Mopar 273-4bbl Combo
 

PM sent. Call me

Re: Mopar 273-4bbl Combo
 

Back in high school, 1968-1972, two Mopars were around that were somewhat overlooked in the days of 383 and 440 Roadrunners,GTX's,Challengers, and other brand big block cars. One guy had a Dodge Dart GT, 273,4barrel and a 4 speed, and he never ceased to amaze everybody with what that little pocket rocket would do. He beat a lot of unsuspecting cars with it. Another small block fun car was the 70 Duster 340 with a 4 speed. that would give 350 Camaros and 396 Chevelles fits. It's not that I don't like Chevelles, I'm up to my eyebrows in them, but some of these other combinations are worth looking into. The Bushmakers prove that every time they show up.

Re: Mopar 273-4bbl Combo
 

You should call Rob.



http://d2ydh70d4b5xgv.cloudfront.net...456f0e81f1.jpg

Re: Mopar 273-4bbl Combo
 

I've known Rob for many years. He drove my old Joe Ralph Thompson AWB Plymouth when a mutual friend had it. I bought that car from Fred and I had posted photos of it and Rob saw it. He described it as a scary car with the straight front axle and regular gear box. I've never actually met Rob in person, but have exchanged e-mails for about 15 years. I had that article in a Hot Rod magazine when I was a kid. I guess the Mopar world is small enough where you get to know the other Mopar guys. Rob has a mid-1960s Impala that he's running with his son.