i am gunna buy a 283 and A 700r4 transmission and i am looking for any info on how to add some extra performance inyo the motor? any ideas would help
That depends on how much power you think your gonna need? Because of the bore you are kinda limited in head choices. On mine I am basicly building a 61 Vette. Power pak heads, Dual quads, But inside I am putting 30/30 Cam, aftermarket roller lifters, Double roller timing chain. It won't beat up on larger displacment motors But in an A it should move along just fine.
So-cal wrench, No way are you going to get away with using aftermarket roller lifters on a 30-30 Duntov cam. This cam was designed for regular solid lifters and it's the wrong cam for a 283 to start with. I'd rethink your combination because your NOT going to be happy with the path you're on. Frank
I have understood that the 283 don't like big cams designed for 350s because of the small displacement and lower flow capabilites. A small 350 cam is a big 283 cam. I picked a summit part number 1102 cam for mine. I got some refurbished 14022601...80-86...267/305......1.84"/1.5" valves, 53cc chambers heads from the machine shop for 300 bucks. Ought to be like 9.5 or 10 to 1 if I remeber right. and just put some flat tops in it. It ought to be good for just under 300 HP.
I've got a 283 sitting in my deuce that has the double hump heads with 2.02/1.6 valves and about 8:1 compression. it was setup originally to run a blower. has a similar truck type cam now. THat is not the ideal setup for a 283..... but it was free and pretty fresh so....
I don't know what the "best cam" for the 283 is but the poor boys cam of choice back when was the "097" cam from the local Chevrolet dealer. The 097 was the last 3 digits of the Chevrolet part number. I believe it was the solid lifter cam that Chevy used in the 57 283CI-283HP FI Corvette engine and the 283-270 HP dual quad engine. I find the 700R4 interesting for this engine. It seems to me that it would work well with it's extra low first gear to get the little engine winding up into it's power band.
have you started it up yet? I'd like to hear how it runs when you do. I have yet to fire mine and had it built for a bout a year. I am also changing from that set up I listed below to put a blower on. I was thinking shose double hump heads have 64 or 62 CC chambers - that will stick you at 9 to 1 if I remember correctly. I am putting 74 CC heads on mine for the blower set up and I was thinking that would put me at 8:1. You may have dished pistons.
I have power pack heads 9.5:1 compression, comp extreme energy hydraulic cam, and vette ramshorn exhaust manifolds. I'm going to use an edelbrock performer RPM and a 600 cfm squarebore. Mild, but still exciting.
Hey tommy that is the grind I'm talking about . Not the Duntov I thought i saw an article about a simmalar gringd available for roller lifter upgrade. I could be wrong but I thought I read it somewhere.
Yeah, I notice that a lot of people call the "30-30" grind a Duntov, which it's not. Maybe Duntov designed the "30-30" as well, but it's much more radical than the "097" that was used in the high performance engines from 1957-63. My brother made the mistake of putting a "30-30" in his 283 years ago, and found out first hand what "overcammed" meant! A VW bug could outdrag him from 0-30.
tommy, that sounds like a nice setup, did a little reading about it. tudor, I haven't run it myself. with 8-8.5:1 compression and a very radical cam the guy I got it from used to drag race it with a big stall turbo350 behind it. he would shift it over 10k rpm. in an early 60's vette. I would never have believed it if I didn't know this guy too well to know that's exactly the kind of thing he WOULD do. he built the motor just too piss people off. he put it together plain jane, and told everyone it hadn't been out of the barn for 20 years. after he put it in the car he sprayed it with motor oil and drove it down a dirt road so it looked the part! when he pulled it out of the vette he had intentions of putting it in a truck he was driving, hence the truck cam.
If you really want the 097 period solid lifter cam, THIS GUY knows what you are talking about. So many terms get tossed around on the net that I get nervous when guys say oh yeah we've got that. This guy has the pattern and can make you the genuine article. You can probably get a better performing hydraulic cam from Summit cheaper but a real 283 deserves the 097. You had to be there to understand the romance. MHO
Amen tommy, the 097 was THE cam back in the day. As for now ,like I've said MANY times, give the cam grinders a call, deflate your ego when they ask you about your application (tell the truth) and let them recommend a grind. After you talk to two or three a pattern will start to emerge and it will be advice that should be taken . Frank
and then lie about it and say it's an 097 (pronounced oh 97) After all we'd lie about the cam then too.
....and if any of you are wandering at a swap meet and see some N.O.S. TRW cams in boxes, I believe that CS113R was their part number for an 097 clone. I picked one up new in the box for $20 last year at Fall Carlisle. A while back, I was looking for something in my mother's house and found the receipt from 1970 when my brother went to the local dealership and bought one to replace the "30-30" that he couldn't live with on the street. $19.00 for the cam and .96 a piece for the solid lifters! That was the main reason that the Duntov was so popular with hot rodders--aftermarket cams were much more than that in '70.
Every issue of HOT ROD or Car Craft for that last 35 years has this info in it. Pretty much any conceivable combination has been covered.
The Jalopy Journal
