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  #106 (permalink)  
Old 07-26-2013, 08:41 PM
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all i know is by the time im done jokerz71 should be a 283 expert lol

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  #107 (permalink)  
Old 07-26-2013, 09:40 PM
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there is one thing about the 283 I dont like.The balancer is pressed on with no retention bolt.After fbird88 tells you wihich 305 heads are the best you will have good potential for 270 ish HPand still get very good mileage.You will need to change the intake and valve covers.
You might have to change the valve covers anyways as many 283s had a different bolt pattern(staggered) for factory valve covers and most everything else had equal spacing, top and bottom bolts matched distance from each other, 283s were 1/2 inch or so narrower on the top of the cover,,,( cannot put the cover on rotated 180 like the later 350 covers
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  #108 (permalink)  
Old 07-26-2013, 10:31 PM
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what took you so long fbird?
I figured you would have the head issue done 4-5 pages ago.
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  #109 (permalink)  
Old 07-27-2013, 05:17 AM
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Quote:
Originally Posted by vinniekq2 View Post
there is one thing about the 283 I dont like.The balancer is pressed on with no retention bolt.After fbird88 tells you wihich 305 heads are the best you will have good potential for 270 ish HPand still get very good mileage.You will need to change the intake and valve covers.
You might have to change the valve covers anyways as many 283s had a different bolt pattern(staggered) for factory valve covers and most everything else had equal spacing, top and bottom bolts matched distance from each other, 283s were 1/2 inch or so narrower on the top of the cover,,,( cannot put the cover on rotated 180 like the later 350 covers
yea im with ya on the balancer but yea the valve covers aint a prob got plenty & got alot of stock intakes
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  #110 (permalink)  
Old 07-27-2013, 05:19 AM
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Originally Posted by F-BIRD'88 View Post
Post the whole casting number of the "462 heads" 462624 is not a perf head at all and has a huge chamber.
You want a 305 head that has a very small 53cc chamber #601) or a milled down 4416.

#450 is crap, and about 64cc. chamber too big, valves too small, real bad ports.

The old 462 camel backs do not have accelssory bolt hoels or hardened ex seats and will need milling to
get cr on a 283 with flat tops.
You need a very small combustion chamber for this motor.
Put the wrong head on this motor and it will be a slug.
You want a finished 1.94x 1.50 valve set.
This 283 can be very good if done right.
thanks very much it'll probally be tomorrow before i can get the 462 # for ya thanks
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  #111 (permalink)  
Old 07-27-2013, 05:24 AM
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hey check out my page https://www.facebook.com/pages/BKC-B...9093976?ref=hl if your in the area gonna be at somernites cruise in somerset ky from 1-7 their the only show in ky that wont actually let them in so its just the lil 1 in the back of a truck but if u can come would like to talk to ya
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  #112 (permalink)  
Old 07-27-2013, 08:27 AM
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Out of the heads you have posted,the #14022801 is gonna be the best if you have to use what you have.I get some mixed info on them.There may be 2 versions so ck the valve sizes.They could be 1.84 or 1.72 intake valve.Some sources list them as identical to the #601 head.They were used on the early 80's 305 4 bbl truck engines.Like F-Bird said,the 416's would be a much better head.Much better.If you have to use what you have tho,I'd say these would be your lesser of 20 evils !!! You could have 1.94 valves put in.IDK if the cost would be justified tho.The 1.72 valve is gonna limit upper RPM power,but,will help with lowend torque.
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  #113 (permalink)  
Old 07-27-2013, 09:04 AM
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Originally Posted by jokerZ71 View Post
Out of the heads you have posted,the #14022801 is gonna be the best if you have to use what you have.I get some mixed info on them.There may be 2 versions so ck the valve sizes.They could be 1.84 or 1.72 intake valve.Some sources list them as identical to the #601 head.They were used on the early 80's 305 4 bbl truck engines.Like F-Bird said,the 416's would be a much better head.Much better.If you have to use what you have tho,I'd say these would be your lesser of 20 evils !!! You could have 1.94 valves put in.IDK if the cost would be justified tho.The 1.72 valve is gonna limit upper RPM power,but,will help with lowend torque.
i'll check the valves on it from the dyno i did its apparently a low end motor i think drops off at 4000 its pretty good up to 4 then starts goin down i'll run it agin usin the 801's & see what it does after i see what size valves it has i think helpin the lowend torque would be a good plus cause from the dyno its got pretty decent torque just not alot at the start but i'll run it again with those heads & a specific cam & let you know it might be monday before i can do the dyno thank you very much
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  #114 (permalink)  
Old 07-27-2013, 09:08 AM
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one quick question i may have asked already but will the 283 intake work with 305 heads or just use a 305 intake or ive got 350 intakes & 400 to i'll be use a small cam suppose to be for lowend torque & fuel economy & from idle to 4500 but if i use that cam which intake should i use part# for cam its summit #sum-k1101
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  #115 (permalink)  
Old 07-27-2013, 09:13 AM
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A 283 is a small engine,dont expect a lot of torque. The best head(I believe for you) is a vortec head.The combustion chamber design is good and works well on low HP engines.The stock 283 makes about 200 HP with a 2 bbl. You really need to just decide what you want and fbird will tell you the best casting number for the application.just use the dyno sim as a trend,dont believe the numbers to be accurate ,just a guideline.
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  #116 (permalink)  
Old 07-27-2013, 09:37 AM
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Quote:
Originally Posted by vinniekq2 View Post
A 283 is a small engine,dont expect a lot of torque. The best head(I believe for you) is a vortec head.The combustion chamber design is good and works well on low HP engines.The stock 283 makes about 200 HP with a 2 bbl. You really need to just decide what you want and fbird will tell you the best casting number for the application.just use the dyno sim as a trend,dont believe the numbers to be accurate ,just a guideline.
The vortec head would the best head without doubt.He could probably get a set for not much more than what any of his current heads are gonna cost to get rebuilt.Much more efficient as well.With a set of those & a new dual plane aluminum intake & good 4 bbl carb would be his best route to go if he can be talked outta trying to use what he has onhand.LOL.
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  #117 (permalink)  
Old 07-27-2013, 06:06 PM
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Quote:
Originally Posted by bry_93 View Post
one quick question i may have asked already but will the 283 intake work with 305 heads or just use a 305 intake or ive got 350 intakes & 400 to i'll be use a small cam suppose to be for lowend torque & fuel economy & from idle to 4500 but if i use that cam which intake should i use part# for cam its summit #sum-k1101
I think in order to use that intake,you will need pre 87 heads.I'm not 100% sure,so,if that's wrong,maybe somebody can tell you for sure.Also'be absolutely sure to use the recommended springs & hardware for that cam.If you're gonna limit your build to the parts you have onhand,you're already leavin a lot on the table.
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  #118 (permalink)  
Old 07-27-2013, 08:43 PM
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keep on lol

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Originally Posted by jokerZ71 View Post
The vortec head would the best head without doubt.He could probably get a set for not much more than what any of his current heads are gonna cost to get rebuilt.Much more efficient as well.With a set of those & a new dual plane aluminum intake & good 4 bbl carb would be his best route to go if he can be talked outta trying to use what he has onhand.LOL.
keep tryin it might work lol
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  #119 (permalink)  
Old 07-27-2013, 08:47 PM
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lol

Quote:
Originally Posted by F-BIRD'88 View Post
If you just want a (real good) bolt on head and don;t want to get into porting/larger valves etc etc ...You are right, the Vortec heads will work real good on this motor, once the chamber volume is corrected.
worth the cost of the vortec intake.. Don't bother with used Ebay/junkyard stuff. Buy new GM 062 or 906 vortecs.

the vortec heads are a great way to modern ize a 283. If you just stick a poor/crappy cylinder head on this motor don't expect much from it.

It is critical when building a 283 with a flat tops piston to get the combustion chamber volume right.
The flat top piston 283 was a low cr low perf motor. All the factory hi perf 283's had a dome piston.

But a low compression ratio (with good heads) 283 is a great engine to supercharge.
Again, this flat top 283 with vortecs and a 142 blower will rock!. Stroker motors beware.

The bastard cousin L-30 305 vortec motor cylinder head is a option here too. (059 casting).
again mill to correct the chamber volume.

The key to a 283 Cid sbc is do not think of it as a low rpm engine. Do not load it down with a low numerical axle ratio. "hiway gears"
It likes to rev. Put some gear in it. let the lil 283 do its stuff. Same goes for the 305, 307 and 327 small blocks.
bastard cousin lol love it & dont know if it makes a difference but the flat tops was put in the motor wasnt original
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  #120 (permalink)  
Old 07-27-2013, 08:48 PM
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ok

Quote:
Originally Posted by jokerZ71 View Post
I think in order to use that intake,you will need pre 87 heads.I'm not 100% sure,so,if that's wrong,maybe somebody can tell you for sure.Also'be absolutely sure to use the recommended springs & hardware for that cam.If you're gonna limit your build to the parts you have onhand,you're already leavin a lot on the table.
yea i was just wondering thanks
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