[fordboy4rd]

Question guys whats the difference in a boss 302 and a regular 302 i need to know i got offered a boss 302 for about 500 bucks said it ran good

[5literJeff]

http://en.wikipedia.org/wiki/Ford_Boss_302_engine

[fordboy4rd]

ok but about how much horsepower am i looking at..

[5literJeff]

The old boss 302 was rated at 290 hp@6000 but that was before they changed the horsepower rating from gross to net I believe. They made plenty of power upstairs but were known for being poor performers below 4k or so.

Also you should know, a real boss 302 engine is worth alot of money nowadays because they are fairly rare. 500 bucks is a steal for an actual boss engine, you can sell the heads alone for more then that.

If I had the option to get a boss 302 for 500, I definately would, then I would turn around and sell that on ebay or something, and use the money from the sale to buy some AFR or trickflow heads and go from there.

I dont think I would put a boss 302 in a fox due to needing a custom intake, headers, and possibly other fabrication parts that might not fit a normal sbf. Up to you though.

No about the 4000, I mean they dont make much power below 4k because of the huge ports and valves. After 4000 is when the motor starts making some power and it dont really max out till 6 or so. Clevelands can flow a ton of air but its kind of overkill for a street engine is all im saying. Kind of like putting AFR 205s on a stock 5.0 HO engine, the limiting factor then becomes the other parts on the motor instead of the heads.

[fordboy4rd]

Well these people build race car motors.. i dont know if this motor is *built* or not no way its max can be 4,000RPM that would sucks but ur saying stock right? i didnt actually know u could put big block heads on a small block.. thats weird is that why the heads are worth more than that?... because they cat fit any small block ford from 289 - 351W?

[fordboy4rd]

sorry missread you man yeah i saw that on that site poor performers below 4,000 dont worry thou i wont go under 5000

[5literJeff]

Originally Posted by fordboy4rd i didnt actually know u could put big block heads on a small block.. thats weird is that why the heads are worth more than that?... because they cat fit any small block ford from 289 - 351W?

Well the cleveland '335' series of engines isnt really a big block. Its about the same dimensions as a 351 windsor which is a mid sized engine, just they have some notable differences, the most noticeable being the canted cylinder heads which gives it wider valve covers. They also had a dry intake manifold which is another way you can tell the 351C from the 351W.

Yes you can fit 351C heads on a 302. No its not a direct bolt on either, some water passages need to be modified ifirc and theres a name for those 302 engines with 351C heads on them, called a Clevor. http://www.mustangandfords.com/techa...clevor_engine/

Its also not needed in todays bolt on world since you can buy better flowing heads with smaller ports (for better driveability) for a comparable, if not even better, price then it would cost to setup a clevor engine.

Oh and yes im somewhat of a cleveland fanatic as one of the first performance cars I owned had a 400M in it which was a load of fun and I learned alot about the clevelands. I have owned a 351C-4V motor as well in that car and I wish I hadnt gotten rid of it now.

[fordboy4rd]

yeah i like ur mustang its nice thats what im looking for right now i see a few around town... and broken ones with no titles which are useless just dont know what motor to get i like high rpms and HP i just dont know what the best motor to go with would be im wanting atleast 400HP+ with out the use of Turbo/super charger or Nitrus.. and be a daily driver

[Racinjason81]

you should get an aftermarket block such as a world,dart or new boss
because 5.0s are not going to last long at all at high rpms.you would
need a well balanced and quality lower end .you would probably would want to get a stroker maybe 351 based so it has some low end power.
a high rpm engine probably wont be best suited for the street.a stock block 5.0 is good to 450hp and 7000rpms and no more.how high of a rpm
do you mean?you probably would not pass emissions with a lopey cam.

[fordboy4rd]

u pretty much had is man 450HP 7000RPMS im thinking a 351W? what do u think with a racing cam im looking for about yeah 400 - 500HP with a automatic tranny with a shifter kit

[Racinjason81]

nascar and real street class engines see over 8000rpms regularly.IF you want a street engine thats enjoyable i suggest going up with the cubes and lower with the rpms(6000) a well built 351 should get you there.your
better off with a rpm range of 1500-6500 for a street engine cuz you really dont want a sluggish car do you?do you plan on a carbed or a efi fuel system?

[fordboy4rd]

Defently Carb

[Racinjason81]

you could also build a stock block stroker 302. a 347 will get you there
but you could get there without h beams,and forged crank because its overkill on a 302.you would be fine as long you dont exceed the ho and rpm limits of a stock 302.

[fordboy4rd]

yeah but why a 302 when i can go with a 351 thou? and stroke it to a 300 something i forgot what its number is.. wouldnt that be just as good? but more hp or more torque

[Racinjason81]

i wasnt sure if you wanted to do a 302 or 351 based stroker.
383,393,408,418 are a few strokers to choose from.contact
holcomb motorsports.com and they will have a kit to swap in that 351
for relatively cheap. the parts that dont interchange with 302s are as follows,oil pan,oil pump,balancer,oil pump shaft,intake,power steering bracket,headers and distributor.dont overdo it with the carb size and cam.

[fordboy4rd]

Oh i thought a 383 Stroker was chevy guess not.. but yeah a 383 stroker sounds pretty good even know the kits more then 1000$ how much hp u think it would be stock and then with a stroker kit? and a big cam in it?

[Stangzilla]

Originally Posted by fordboy4rd Question guys whats the difference in a boss 302 and a regular 302 i need to know i got offered a boss 302 for about 500 bucks said it ran good

I would like to see pics of that motor.. I doubt you got offered a real Boss 302 motor for 500 bucks...

[Racinjason81]

a set of afr205s , a custom grind cam, set of 13/4 long tubes would definitely help

[Racinjason81]

early 351 lightnings made like 250hp , a stock headed 383 stroker probably make 275 hp and a ridiculously high amount of torque,you want to match the cam to the heads cuz you dont need extra lift over where the heads run out of steam .heres an example you dont use a .650 lift cam with heads that only flow to .475. a 750 carb should be good for a 383.comp cams can make you a cam to match your engine.you would get
more HP with a custom cam over an off the shelf cam.if you choose
an off the shelf grind do your homework to match it to your combo as closely as possible,chances are you will get close not dead on

[Stangzilla]

Originally Posted by Racinjason81 you should get an aftermarket block such as a world,dart or new boss because 5.0s are not going to last long at all at high rpms.you would need a well balanced and quality lower end .you would probably would want to get a stroker maybe 351 based so it has some low end power. a high rpm engine probably wont be best suited for the street.a stock block 5.0 is good to 450hp and 7000rpms and no more.how high of a rpm do you mean?you probably would not pass emissions with a lopey cam.

A stock block can hold a little over 500 hp with the right parts and a goos tune with no problem...