305 run hot with 882 heads

[outlawtaz]

hey all i need a little help i am doing 2nd conversion on 2002 s10 drop 305 but i have aa set of 882 heads all done my question i am running a/c in south fflorida do you think i am going to run too hot with these heads on this 305 with mild cam , carb , i need all the advise i can get on this please

[chris1972]

will not have any power because od small bore with big chambers...mid 7's to low..i would put 305 heads on it..

[Scuba]

If you have a good rad and fans on a thermostat you should be fine, I agree 305 with those large of a chamber will probably have less power than the 4.3 L that comes in the s-10.

[spacecadet]

Have to agree w/chris1972.
The other thing is with the small borre of the 305, according to what size valves are in the heads they may hit the cylinder wall or block when the intake opens. Thats why many 305's have 1.84 intake valves

[coppergmc]

Did a quick calculation on compression. With a flat top piston, compression will be 7.65:1. You'll probably be ok on the valve clearance but you won't make any power. You'd be a lot better off getting a set of heads. Try something like a set of 601s or something. Your compression with the 601s will be about 9.5 or so. That won't effect cooling and should make for a better running engine with the mild cam.

[copley87blaz]

Would bee good fore boost lol

[outlawtaz]

thanks all i looked at all your posting and you all are dead right the guy that had the 305 had 882 heads on it in a jeep so i found a 69 camaro 302 some guy had casting number 3932386 thats block casting number he had in garage had it advertised to clear out garage complete motor with stagered duals and air cleaner for 150 bucks offered 100 he took it so now i on a 302 project anybody with headers

[chris1972]

thanks all i looked at all your posting and you all are dead right the guy that had the 305 had 882 heads on it in a jeep so i found a 69 camaro 302 some guy had casting number 3932386 thats block casting number he had in garage had it advertised to clear out garage complete motor with stagered duals and air cleaner for 150 bucks offered 100 he took it so now i on a 302 project anybody with headers

how in the hell did you get a great deal...that motor used should cost 1000 or more...what a score

[outlawtaz]

was on craigslist and ran across motor for sale called this guy he knew nothing about what he had on floor i checked the casting numbers it took me alot of time to keep reading but the air cleaner was a given after reading all the posts on the 305 i went on the search and this is what i found

[outlawtaz]

when this guy got 100 bucks in his hand his pearlie whites about fell out his mouth i had to sit and wait in thunderstorm for friend to bring over trailer to load it up for real for real 302 100 bucks

[outlawtaz]

say thanks for all replies now i need headers but thanks to all of you

[racer1182]

i have a set of used shortie headmans for cheap. pm me

[smallblock283]

Have to agree w/chris1972.
The other thing is with the small borre of the 305, according to what size valves are in the heads they may hit the cylinder wall or block when the intake opens. Thats why many 305's have 1.84 intake valves

space is right ,I have a 283 with 3.875 bore and a 1.94 vavle is the biggest you can use it will hit the block. the 305 has a 3.736" bore. what will some dome pistions do for this 305 guys ?

[Ryoung68]

Man, you should feel bad for stealing that 302 for $100.000, NOT! Great find, does it still have the solid lifters? I should run really well in the Sdime. :headbang:

[outlawtaz]

just got back from machine shop and the guy who does all my work was floored we took the top end apart it looks like new it has same bore size we are confused on how he got hold of something like this and i am not going to ask

[coppergmc]

I built a 302 for a buddy of mine about 2 years ago. It's got the 5.94" rods and regular flat top 350 pistons. We used a set of vortec heads and a comp cams XE268 camshaft. That little thing loves to rev. Just wish we could of use a small dome or something to get compression up some. I think compression ended up being 9.1:1 (which isn't bad) by playing with the deck and gasket thickness. To raise cylinder pressure we advanced the cam 4 degrees and the engine liked it. I guess what I'm saying is you'll like the 302.

[outlawtaz]

yes it will be a cool deal i am in process with my buddy who does all my engine work on best set up yours sounds good

[Ryoung68]

The 302 in my Z28 had domed pistons 11:1 and reved past 8000. They do like the higher RPMS!

[outlawtaz]

thats a cool motor i know tomorrow what direction this is going i want to go all the way and see it at the track so ?

[copley87blaz]

Lucky 100 bucks some people just dont know

[bigrond]

nice rare find .not much of a drag motor awesome awesome street motor they do like to rev and they stay together well at high rpm .big valves are a must on this engine it likes to breath .spend the money and get it balanced use only forged pistons .anything less and it will come apart at high revs.still cant get over that 100 bucks for a 302 great score .
good luck and take no short cuts on that motor do it right and itll keep you smilin for a long time

[harleyboy]

well I put 305 heads on my 350 and I like the way it runs but you having a 305 with 350 heads it is different you are lowering you compression in turns lowers your horsepower man.

[helmmadkc]

a complete 302 cid chevy engine you got something there that is for sure

[smallblock283]

what is the casting # and the number on the front of the block on the pass. side

[0814clarkson]

wow thats a great find,i just bought a complete 327 the same way a guy wanted his garage cleaned out and had it sittin there asked how much and he said 100 bucks,lets just say i have never loaded a motor so fast...

[SassyV8]

amazing what people have and let go for cheap...If some of those people knew actually what they are really worth...nice find and snag and run...I'd be the same way load and go.