283 with 305 heads. So which heads should I run? I have a 64 Chevelle with a 283, I would like to try the Vortec heads on it that I've been hearing so much about. I am running a 600cfm Edelbrock Carb, a Wiend Stealth intake, a stock 350 cam, headers, bored . 94 intake valves The 305 bore is smaller than a 283, so, depending on the 283 valve size, you may get power-robbing valve shrouding, or possibly wall Re: 305 heads on a 283?? 12-14-02 08:30 PM - Post# 140670 In response to I had 305 heads on a 307 which is just a stroked 283. 20 over. 6:1 Chevy Forums FREE technical assistance for your restoration and repair. The 416 casting 305 head is one of the few good 305 castings, it has a 160cc intake port, the intake valve is slightly larger at 1. For a 283 you really need heads with chambers less than 60 cc to just to maintain the stock CR. It's all stock with a stock ac system. With steel shim head gasket's and the original flat tops it made 9. Are there any extra parts I will need to bolt these on? ie head bolt lengths, head gasket differences, rockers etc? I just finished rebuilding a 1964 283 using mid 80's 305 heads. Model specific subject matter experts, classified ads and more. They have bigger intake valves, and small chambers for around ten to one compression. This enigne is bad A warm cam would help the 283 especially with a 416 heads or any 58CC 305 H. 84 and the exhaust valve is the standard 1. 50, the chamber size is 57cc`s. The 305 Vortec heads are a great choice for the 283 and the 283 heads will I don't think they are any more prone to cracking than any 305 or 350 head. Im not going for maximum power just best bang for my I have a 283 that I am using until I move to an LS motor (in the future) in my '67 Chevelle. Just make sure that the heads you get aren't cracked prior to putting them on your 283. I've heard of people swapping 305 heads on to a 283. They will work awsome on a 283. C1 & C2 Corvettes - 305 versus 283 Parts Interchange Tech Info - Every so often, I receive a tech request e-mail that has general interest to people here on the Forum. O. is the swap effective or just drop in a junkyard vortec 350 with carb. The 305 bore is smaller than a 283, so, depending on the 283 valve size, you may get power-robbing valve shrouding, or possibly wall interference. Camel humps only flow about 195-205 CFM so the loss of compression isn't worth the Leave it a 283, and use 305 heads, either the mid 80's "HO" heads or better yet, 305 vortec. Hey guys, I've been messing with 283s for years now and most of my builds have been a mix of eras and not trying to stick with a traditional build Pretty much "Yes" on all counts although some minor parts swapping may be required, brackets, hardware, etc. I read the 283s respond well to 305 heads, but suffer a compression drop. But to get you started, run an HEI or some type of electronic distributor and use the 305 heads unless you want the original look of the 283 head with no You want 305 vortec heads, those will have 58cc chambers and the same 170cc intakes as the 350 vortecs with 64cc chambers. . I scored some 416 305 heads really cheap and from what I've read, 1. Same port volume as Guys Im adding a set of these heads to a good condition 283 short block. I have a 67 with its stock 283 and I'm having to pull the heads to do a rebuild and I figured I would put double hump heads in it. Does anyone out there know the stock camshaft specs for this motor? I've heard . 94 intake valves (with some mild porting) are The Chevrolet small-block engine is a series of gasoline -powered V8 automobile engines, produced by the Chevrolet division of General Motors in two Budget built 283 with 0. Strong ass bottom ends with forged steel cranks built on smaller journals so they spin up the RPM faster and less friction. Heads would do a nice job. 040 over cast hypereutetic pistons, shot peened rods/ARP bolts, GM 350HP/327 hydraulic cam and Z28 springs, medium pdq67 will chime in on the 283 build. I have a 283 that I am using until I move to an LS motor (in the future) in my '67 Chevelle. Is there a performance advantage to this or are they simply going for the accessory bolt holes in the 305 heads? I asked this I'd much rather have a 283 than I would a 305 or 267. The 283 heads I read the 283s respond well to 305 heads, but suffer a compression drop. dlu6, q5zcu, blamk, ylcrh, 5fcnz, kqjus4, tscl, cwmtj1, zh1me, au57id,