i was just woundering a 1/4 mile guess i just put in a 355 882 heads, roller rockers , cam 440 lift intake and exaust,performer rpm intake,650 holley dp, shorty headers with true duels 2 1/2 inch, alot of weight reduction 90/10 struts,weld wheels, harwood 4 inch cowl, 700r4. not sure on rear gears. thanks

 

High 13's maybe.

 

ehh 882's are alright but not anything special,they can be cleaned up a bit with porting though,if u know u are doing.i built a motor with them for my friends el camino,ported 882's with a .060 over 350.with .250 speedpro hyperectic domed pistions 10.2-1 cr ,rpm performer airgap,i forget the specs on the cam but i know it was like .510/.525 lift,holley 670 street avenger carb,hooker long tubes,true dual 3 inch,turbo 350 trans with 2,800 stall and 3:73 gears,and he was going like 12.5-12.8's

 

14.0

 

Expect 15's, be extra pleased with anything better.

 

i was thinking of geting some better heads i just threw those on to get it running really and to save enough for some new ones. i really want to get into the mid 12s to low 13 range. i was thinking about geting some sportsman 2 heads would this get me there im trying to spend no more than 1000 on heads. and what other things could i do to get me there. thanks

 

with those junk heads and peanut cam and the rest of the mismatched parts your looking at a solid 14/15 second ride...

the sportsman II heads are not really anything special either. they need alot of port work outta the box to get any kind of good flow numbers. honestly, if you just want something that's gonna work great outta the box and won't cost you an arm and a leg, i'd suggest you look into the TrickFlow heads...and more cam.

 

Yup, I gotta go with the flow here- you are looking at low 14's high 13's, which is ok if you have a stock appearing car, but an utter embarasment in a gutted car with skinnies and a cowl hood.

I ran a 14.12 @ 97 in 60* temps with my 3200lbs with me in the seat S10 with an 882 headed 8.3:1 S10 with a .477/.480 lift cam and 3.73 gears.

 

went to the track for first time

rt.429
60'..... 2.288
1/8..... 10.112
mph..... 73.87
1/4..... 15.414
mph..... 92.08

that was the worst run fpund out fuel pressure was only at 2psi

2nd run set fuel at 5psi took off alot better.

r/t.... 433
60' .....2.066
1/8..... 9.376
mph..... 76.66
1/4 .....14.475
mph..... 96.07

3rd run the best so far

r/t .....420
60'..... 2.093
1/8...... 9.163
mph .....78.20
1/4 .....14.219
mph......96.30

i havent yet put the performer rpm on it yet it has a stock aluminum one on it but no casting numbers. i have a turbo 400 with 3000 stall and shift kit to. do you think with these ill be able to brake 13s and do those numbers sound right. the exhaust i think is holding me back to beacuse from the header to the straight pipe is only 2" and after that its 2 1/2 do you think it would run better with open headers. im thinking about trading for long tubes and run them straight back and dump them before the rear end. thanks

 

long tubes will help for sure. and anything to help get the motor up into the power range quicker is a good thing (ie th400 with 3000stall). go to my cardomain site and look at the 3rd page and you can see my exhaust (true dual 2.5")

when are you gettin' better cylinder heads?

 

hopefully by next month i need heads around $900 or under eaither im going with the sprortsman 2's and porting them out or really havent thought of any other ones. i might look for a good set of used heads.

 

if you can budget another $100, you can pickup some TrickFlow aluminum heads that will outflow the sportsman II's hands frickin' down!

 

god bless the 882 smog heads, im using them, they suck, but they are cheap
what kinda compression are you running.

 

stock 8.3 i think it is so if i get heads with 64cc chambers what would that put me around im hopping to run 12.s someday.

 

with the stock head gasket, that should make ur compression close to 9.1:1, much better. An L98 style head would flow a good bit better and should net you roughly 30 hp or more. thats low 13s with your combo. Porting would benefit on the side.

 

If you are on a budget try and put vortec heads and long tube headman headers on it. Look in the classifieds or ebay.

 

vortec heads are about 700 bucks with shipping. Complete L98 heads that flow about as good are a few hundred.

 

You can find the vortec heads used. As far as porformance gain I have used a few sets of vortecs and thay work really well Ie. stock rebilt short block from discount auto with new vortec heads stock hyd roller cam and 1.6 roller rockers 3.73 gear and a 2200 rpm converter = low 13 second pass.

 

well heck, thats not bad at all. Vortec heads are nice option. I know vortec 350s run very stout. had one in a 98 k-10 extended cab, it hauled.

 

Do you know the duration on the cam?????

 

For budget motors that are using small cams I like these heads better than the old dart or world cast iron heads. I had a set of world heads I bought new in 92 the heads were cleaned up and could not flow as good as the vortecs.But back then we didnt have many choices.

 

Cam Timing: TAPPET @.004
Lift: Opens Closes ADV Duration
Intake 24 BTDC 62 ABDC 266 °
Exhaust 64 BBDC 22 ATDC 266 °



Cam Timing: TAPPET @.050
Lift: Opens Closes Max Lift Duration
Intake 0 BTDC 30 ABDC 105 210 °
Exhaust 40 BBDC (10) BTDC 115 210 °

If i get different heads im probbly going to get a new cam also.

 

I assume you have a hyd. flat tappet cam. Invest in a 230 @ .050 duration cam (480 lift). Put some .015 head gaskets on it and roll.