where are the block numbers on my 283 :confused: :confused:
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where are the block numbers on my 283 :confused: :confused:
Back of the block, right above the bell housing. a wire brush, degreaser and a scraper will prove useful to find and read them. If not visible due to tight spaces ( if in vehicle ), get a peice of clay or even playdough might work, press it on the numbers, take a mirror and read the imprint. With a truck, tight spaces shoulden't be a problem.
its out and down to the block when i get these numbers off how do i find out what year it was made and stuff????
http://www.mortec.com for castings decoding
http://www.nastyz28.com/sbchevy/sblock.htmlQuote:
Originally posted by TRUCKGUY
its out and down to the block when i get these numbers off how do i find out what year it was made and stuff????
Check here to decipher the engine code.
thanks alot i found out that my engine was manufactured from 61-64 and the heads on it were made from 63-65 and they are 60cc chamber.
so this tells me that my engine was manufaturd in either 63-64.
oh and are 60cc chamber heads any good for racing or drag racing?????
ok one says it was made from 61-62 the other says it was made 61-64 any ideal witch it was block number (3789935)
mor tec say's the head's were made from 63-64 head number (3795896)
thanks
Shoulden't matter truckguy, I don't think the blocks changed from '61-'64, you could get pretty good compression from 60cc chambers so, yes they could be good with the right pistions.
ok i have been thinking abought forged pistons for it.
what should i get done to these heads??
thanks again
Hey Truck Guy,
Have them cut for 1.94 intake and 1.60 exhaust valves. Use some Z-28 valve springs if your going to stay around 280 adv. duration on cam. Stay with a dual plane intake and your 283 will do pretty good. Something to think about..... those heads and flat top pistons will require premium + gas! You may want to drop down to a 73cc head to make things more gas friendly ;)
Just my 2 cents,
Alan
ok thanks for the information
but i was thinking abought a tri carb intake so if iwere to go with the tri carb and the pistons would i need to get another set of heads for it to increase horse power is there a better set of heads that i could get for it oh i dont care abought what type of gas i'm not going to drive it much i am thinking abougght building it to drag race so does anyone know what would be a good setup ?????
thank's
You might go with the old reliable double hump 68cc heads, If you want to stay with a cast iron head. The come std. with 1.94 intake valves, rework the exhaust to 1.60 smooth out the bowls and port match the intake. If it were me I would run a Performer RPM intake........stay away from the tri-power set up, more looks and nostalgia than performance.
Good Luck with your project:3dSMILE:
Alan
ok i will see if i can hind me a set of thoes heads and get that done to them i guess i will go with the performer rpm intake since everyone tells me too so wich one of these intakes would give me the most horses and what carb should i run on it???
thank's
Hey Truck guy,
If your still using a 283 you wont need anything bigger than a 600 cfm carb even if you go with the camel back heads. I would go with the performer air gap intake with a performer 1405 edelbrock carb. That intake gave me 6 hp and 4 lbs of torque over the reg performer intake, the cost is about the same. Good luck with your build up!!
ok thanks i will see if i can get that stuff .
oh and another Question what does a blower do for a engine????
Forced induction of air/fuel mixture. Go fast add on. Make sure you have all the best of everything or your motor will go south. :3dSMILE:Quote:
Originally posted by TRUCKGUY
ok thanks i will see if i can get that stuff .
oh and another Question what does a blower do for a engine????
____________________
Alan
Ok so if i wanted to put one on my littel motor what type of parts would i need i know you have to have a specail pistons and stuff dont you like do i have to have a speacl cam and stuff to???????????????
thanks
Yes, you pretty much need to build an engine around the blower. Even the blower has to be driven as to the right amount of boost which is done with different pulley sizes. You need forged pistons with a compression ratio around 8:1 +or -. Cam grinders offer different profiles depending on compression, boost, ect. Its kind of an art as to doing the right combinations of everything, somthing I've not had much experience with. It's a "ball game" better left to someone with a lot of knowledge or your going to be on the loosing end. :whacked:Quote:
Originally posted by TRUCKGUY
Ok so if i wanted to put one on my littel motor what type of parts would i need i know you have to have a specail pistons and stuff dont you like do i have to have a speacl cam and stuff to???????????????
thanks
Alan