[Roxtar65]

Can someone tell me the pros and cons between the 283 and the 327 original to the 1965 malibu/chevelles? I am trying to decide what engine to go with. I have both available as well as other parts. I.E. Powerpack heads and what not. I was considering putting a six-pack on which ever I choose.

Any input would be greatly appreciated.

 

[Pete 67]

If you want better mileage, use the 283. If you're looking for a cruiser that will put a big smile on your face when you stomp on the gas, it's a no-brainer, 327 all the way.

 

[pink panther]

that 327 will run with the best of them. i have a 68 large jurnel hoefuly someday i will get to build it up someday.

 

[VinceS427bb]

283 is smaller = less hp and torque at same rpm compared to similar built 327.
BOTH will run & sound great.
if you have both go with the 327

 

[richietables]

Welcome to Team Chevelle----

I have a .060 over 327 that I took out, built up the original 283 for my '65. Got rid of the power-packs, though. Used some 416's from a 305, work very well on it. Now that I have it really dialed in (with help from the guys here) I wouldn't trade the 283 for anything.

Either motor will run like a million bucks. Have fun-:beers:

 

[richietables]

Hmm- Any news?

 

[Unclepennybags]

Kind of depends on which block/crank is in better condition. One thing to keep in mind though, is that the 327 will make more torque down low since it has a longer stroke, more h.p. due to the larger displacement.

The 283 engines usually have thicker cylinder walls meaning that many of them can be bored .060" or .090". A lot of guys bored them out .125" during the sixties, but that is kind of a shaky deal.

Both are great engines. I would doubt that you would see a large enough fuel economy benefit from the 283 over the 327 to go with the 283 strictly for mileage issues.

 

[Roxtar65]

Thanks for the advice guys. I think I've finally decided on going with the 283 as it's currently in running condition. The 327 is completely stripped currently, and has been in such condition for several years , so I fear that it will take more work to get back in a running order.

On a different note. I think I am going to put Powerpac heads a 4-barrel carb and a slightly beefier cam into the 283 before I start driving it.

 

[Roxtar65]

Welcome to Team Chevelle----

I have a .060 over 327 that I took out, built up the original 283 for my '65. Got rid of the power-packs, though. Used some 416's from a 305, work very well on it. Now that I have it really dialed in (with help from the guys here) I wouldn't trade the 283 for anything.

Either motor will run like a million bucks. Have fun-:beers:

Sorry Richie, I must've missed your post. Did you leave the 283 with the stock bore? And can you tell me what years the 416's came off of? I might actually have a set of those...

 

[richietables]

My 283 cleaned up at .030 over. My machinist guy said I was luck because somebody did some homemade work on the #1 cylinder at some point before they gave up. Off the top of my head the 416's are from '83 (?). I went RV cam and Performer EPS intake with an Eddy 500 CFM carb. I already had the cam and I like it, but there are more modern grinds out there that might be even better.

Kudos on the running the 283. Bulletproof and old-school hip.

 

[Highway Star]

Kind of depends on which block/crank is in better condition. One thing to keep in mind though, is that the 327 will make more torque down low since it has a longer stroke, more h.p. due to the larger displacement.

The 283 engines usually have thicker cylinder walls meaning that many of them can be bored .060" or .090". A lot of guys bored them out .125" during the sixties, but that is kind of a shaky deal.

Both are great engines. I would doubt that you would see a large enough fuel economy benefit from the 283 over the 327 to go with the 283 strictly for mileage issues.

The engine does not know the difference between increased bore or stroke. More displacement equals more power, and since horsepower is a function of torque, when you increase torque, you increase horsepower. The engine only knows that it can suck in more air/fuel, and blow out more spent gases.

Sorry Richie, I must've missed your post. Did you leave the 283 with the stock bore? And can you tell me what years the 416's came off of? I might actually have a set of those...

Both of these will work very well on your engine. There are a few other castings, but these are the most popular...the "416" and the "601".

14014416...80-86...305..........1.84"/1.5" valves, 58cc chambers

14022601...80-86...267/305......1.72"/1.5" or 1.84"/1.5" valves, 53cc chambers

 

[richietables]

Hey Jake: In your travels, what would a good (read modern) version of the old RV cam be for a small motor like his 283? Something that you can still smooth out the idle pretty well but with some nice benefits.

 

[Highway Star]

Hey Jake: In your travels, what would a good (read modern) version of the old RV cam be for a small motor like his 283? Something that you can still smooth out the idle pretty well but with some nice benefits.

Hey Rich!! How's the weather up in Cleve-LAND?

I'd say the little voodoo, 60100. 207/213 at .050" on 112lsa.

 

[cv67]

Would a 113 aluminum Vette head fit his with the 1.94 int valve?
58cc head 89-91 Vette

 

[Highway Star]

Would a 113 aluminum Vette head fit his with the 1.94 int valve?
58cc head 89-91 Vette

This is the aluminum D port head...GM's last design improvement before the vortec casting. It will work...WELL. :yes:

 

[Roxtar65]

At a second glance, I do not have the 416's. I do have a pair of 461's though.

Tell me what you guys think about this setup.

461 Heads (1.94/1.50)
Renegade cam (214/[email protected] .443/.443 Lift 110LSA)
Rebuilt Holley 600CFM 4-Barrel

This is all that I have so far. Not sure on the intake just yet. I am not very good at crunching the numbers. I am looking for that lopey/rough idle sound with some decent hp/tq. I am not so interested in taking it to the track. Any input would be appreciated.

 

[Highway Star]

At a second glance, I do not have the 416's. I do have a pair of 461's though.

Tell me what you guys think about this setup.

461 Heads (1.94/1.50)
Renegade cam (214/[email protected] .443/.443 Lift 110LSA)
Rebuilt Holley 600CFM 4-Barrel

This is all that I have so far. Not sure on the intake just yet. I am not very good at crunching the numbers. I am looking for that lopey/rough idle sound with some decent hp/tq. I am not so interested in taking it to the track. Any input would be appreciated.

I don't think those heads will work very well, they have larger chambers than powerpack or 305 heads. You will lose too much compression ratio to justify the swap.

You can order remanufactured 305 heads from a number of vendors on ebay for less than $200 apiece, last time I checked. All you'd need is a spring/retainer/lock setup to run the bigger cam. Scoggins-dickey Z28 springs come to mind.

The cam looks good though, and you'd be straight with a 2101 edelbrock performer intake.

 

[richietables]

I would have loved a set of those corvette heads... The 416's are so cheap, though, and redone...

That voodoo cam sounds great, Jake. Next time I take down the little motor and want to sweat out another flat tappet break-in I'll give it a go.

I'll pretend I didn't hear that question about the weather in Cleveland. Though the sun is shining right now.

 

[richietables]

Greg- Those 461 heads would go great on the 327, pal. They would really dog on the 283 as Jake said. Plus, I think the 600 CFM carb is overkill on the 283, though I'm sure others would disagree. Mismatch combos could run OK but you'll be pretty far from the ideal. What shape is the 327 block in? The cam will work OK in either.

Just my 2 cents.

 

[RATtyCamino]

If it's not too late...do the 327. If you have to get the 283 machined/torn down..... I can't imagine it costing more to machine/build than the 283 if you have to block apart and at the machinist.

For cam in something like that I like the small voodoos or a comp 260H. Edelbrock EPS intake and a 600 DP. Electronic ignition and 1 1/2" primary headers.

The corvette L98 or ZZ4 head would be fantastic for a build like that. Have fun and let it rip.

Bill