I have a 283 60 over with sealed power 2013 pistons with valve relief. Sealed power 1-CS274 cam. This will be an old rod car show vehicle. I want it to be old school. What heads and intake should I look for? Are the pistons and cam a good match?
That’s a Stockish cam With stock style pistons I’m using 283 power pack heads on mine. The 305 heads are probably a little better but I don’t think they look right on an old style build
283 power pack or early camel hump 283/327 heads would work great. Although a little pricey... early factory corvette aluminum intakes can't be beat. there are aftermarket intakes and heads out there... but they don't have the old school look.
My 30 over 283, double hump heads Weiand manifold, with Stromberg 97’s….. the cam you mentioned , according to Sealed Power, is a stock replacement cam
Yup Edelbrock C3B or C4B would be great You have to run a small diameter distributor with them but nobody in their right mind would want to run one of those hideous Hei’s anyway https://www.jalopyjournal.com/forum/threads/edelbrock-c4b-c3b-and-c3bx.1213916/
My first car was a '57 Chevy with a stock 2bbl 283 and 3 speed. As a teenager I switched intakes and carbs many times. The best combo for mileage was the stock 2bbl. For performance was a 300hp 327 intake and 500 cfm AFB carb. With a stockish cam you need smaller intake runners to promote torque and low end power. If you want a traditional aluminum intake go with the Edelbrock C4B and 500 cfm AFB. It will run very well. Stick with 283/327 power pak heads 1.72 intake and 1.50 exhaust and higher compression. My heads were the non high compression. The power pak heads will give you free power and run on pump gas. Good luck!
I think the 305 416 heads are perimeter bolt and 58? CC, so should look “normal”. Well. Fill the accessory holes I guess.
Thank you for all the information. I have a set of 461 and 441 heads, would either work better if I got a better cam? I like the old school lope in the cam any opinions on a good match.
I’m not familiar with your SP 2013 pistons but if they flat tops that would give around 9-1 compression with PP heads which are (factory specs) 60cc, I’d go with the ‘461’s provided they have the 1.94 and 1.5 valves, the 2.02 intakes come too close to the small 283 bore. The ‘461’s are around 64cc’s while the ‘441’s are 76cc’s giving up too much compression. And you might want to use steel shim head gaskets too, rather than composite gaskets.
How much compression loss do you get running the 461s using flat tops.? The 441s probably a lot more definitely stay away from the thick gaskets the kits come with
https://www.jalopyjournal.com/forum/threads/edelbrock-c4b-c3b-and-c3bx.1213916/ Got one of these for back up cause im running a tri power set up on mine. fingers crossed
283 in stock form. Stock 283 4 barrel intake has small runners as compared to the after markets shown already (which are very cool) will do much better excelloration and on low end driving.
No bolt holes…(front/rear). No bigger than 1.94 intake valves. A single triangle on top of a rectangle are correct 195 hp 2 barrel, 220 hp 4 barrel, 245 hp 2-CarterWCFB 4 barrels.
2.02 intake valves won't clear the bore on a 283 although some racers used to relieve the top of the block for clearance but it isn't worth the spendy heads or the effort on a mild street engine. I ran one in my 48 with power pack heads and a 300hp 327 intake and 4 barrel Holley for a long time that ran pretty good for what it was. I had a 30 30 solid lifter cam in it but don't recommend that for the street as you spend too much time adjusting valves.
With pistons .030 down and .016 gaskets the ‘461 heads would give 8.65-1 and the ‘441’s 7.7-1 compression.
As mentioned you wont want to use larger than 1.94" valves, so the 461 heads are I believe 1.84'"/1.50" valves, but if you rebuild them could be changed to 1.94"/1.60" valves. The 64cc chambers should be great for today's gasoline, and probably give you around 9.5:1 compression. They'll work well with a little higher performance camshaft as long as you get a cam that operates in the 1500-6000 rpm range. No sense in going to radical and lose more bottom end on the small 283 SBC engine.
Since he's already got the (stocker) cam, and limited to the smaller valves, what do the SBC guys say about 1.6 rockers to add a bit of spice?
461 heads could either have 1.94/1.50 or 2.02/1.60 valves, depending on what engine they originally came on. Any 327 rated at more than 300 hp got the larger valves.
If you don’t mind spending some extra $$$ and want a solid lifter cam, “I love the sound”. A set of T&D Super Stock 1.6-1 shaft rocker arms are great. In 4 years of hard circle track racing we never ever found them out of spec on the required gap.
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