cam and intake selection

[jamiebarnesjr3]

i want to chenge my cam and intake on my truck. i already have 1.6 alum rollers goin on it. the truck is a 84 k10 with a 350. 700r4, and 3.08 gears im also running 33/12.50/15 tires. the motor is a newer one out of a 89 1-ton im lookin to get more torque and acceleration im taking the performer intake i have off so pls dont recomend that.

[VileZambonie]

Your best bet would be to get rid of that 3.08 ratio and replace it with 3.73:1

[jamiebarnesjr3]

replacing rears right now are a lil outta my budget just more intrested in getting more power outta my 350 cuz ive owned alot of camaros an have never had a sbc that impressed me. im starting to lean more towards mopar just seem like there small blocks ive drivin have produced more power

[VileZambonie]

You can beef up that engine all you want but if you have those gears and tall tires it's never going to have the sack you want. A ring and pinion set is about $200 bucks by itself. You'd probably be into it for about the same amount of $$ doing a cam and intake swap so you should really consider that. What cam is in there now? What heads are you running?

[Josh454]

If any engine in the world has been proven as a solid performer it's the 350.  Oh and just as an FYI there is nothing wrong with a Performer intake either.

[eventhorizon66]

Gears first, especially if you shift the torque curve up in the rpm band.

Why are you taking the performer off?  Are you looking for more low-end, mid-range, or top-end?  If you want all the above, it's gonna take more than a cam and intake - you need better heads and more compression as well.

I have a hard time believing that a 360 mopar is significantly better than a 350 chevy.  And it certainly doesn't have the same aftermarket support as the SBC...nothing does.

[fitz]

im starting to lean more towards mopar just seem like there small blocks ive drivin have produced more power

  I bet thse mopars ran 3.73's.
  I always used to put all my $$ into the motor not realizing how much the gears helped the whole package. It wasn't until I bought a 79 Jimmy with 3/4 ton axles with 4.10 gears that I understood how much the gears changed things.
  If your on a budget I'm sure you can score a set of complete 6 lug axles with 3.73,s off craigslist for cheap money. If you have the room try to get a complete truck with 3.73's in it (RPO code GT4). I've bought many parts trucks for a few hundred $$ that had 3.73's. Sell off the rest and you got some free gears.

[jamiebarnesjr3]

i understand your gear opinions but i had a 355 in my 79 z28 with 3.42 gears and my 72 dart has much more power with i beleive 3.23 gears an same size tires imma chevy guy i was just saying ive blown up more sbc than just about anyone my age can and that 360 dart has taken a beating an never let up and its all stock. i would love to find a set of rears but around here they are hard to come by and installed run around 600 a rear. and as far as the performer goes they are just a tad above stock which is why im getting rid of it. and as far as heads im runnin 2.02 heads cast iron 1971 i beleive that have had new valves and a 3 angle valve job done. with 1.6 ratio aluminum rollers from summit. im looking for more pulling and tire fryin power.

[Josh454]

ive blown up more sbc than just about anyone my age can

 

It sounds like what you're looking for is more low end torque.  So I do agree with changing the intake.  In fact, put a stock cast iron q-jet one back on.  Run the smallest cam you can find and as aforementioned, change the gears!

[jamiebarnesjr3]

why a small cam? cast iron intake? wouldnt that be going back to stock? seems backwords to me you know how you see those truck/cars that can nail the gas an smoke em till they let off the gas? thats what im looking for, im looking for rears now i wanna go like 3.73 or 4.10. but heres the kicker ive decided to pull the engine an use it in a 86 iroc project im doing. but i have a stock 1990 350 outta truck. that runs great an only has 32,000 miles. what would be the most efficiant set up for a cam,intake,rockers,carb to bring this baby back to life. no heads they are 194's but theres no way i can afford a set of heads. but throw a estimated hp an torque out there to with you combos please. i appreciate all opinions thank you.

[jamiebarnesjr3]

also i need to know if gears outta 10 bolt camaro rear with posi will fit this truck it has 10 bolts to but is limited slip because i have a few sets of ring and pinion gears out of 70-81 camaros that are 3.73

[Layne]

you know how you see those truck/cars that can nail the gas an smoke em till they let off the gas?

Only one I've seen was a 69 T/A with a 455 rockcrusher and a 200 shot. At a 40mph roll.

[jamiebarnesjr3]

im sorry if you took me too literal layne. i dont really expect to fryem till i decide to let off but i do wanna be able to roll up on a lil gt 5.0 or camaro or what ever and give em something to worry about

[fitz]

  You gotta compare apples to apples.
  I just googled 72 dodge Dart curb weight and came up with approx 3000Lbs,79 Z28 came out at approx 3600lbs.
  Using the drag racers golden rule that every 100lbs is Worth 1/10th in the quarter, the dart would run 6 tenths quicker than the camaro in the quarter if they had the same H.P.
  Just something to think about.                   

[VileZambonie]

You're rocker ratio, 2.02's probably 72-76cc chamber heads, and going with a higher rise intake will actually have more torque in the higher rpm range which is fine if you have the gearing to support it. Put your transfer case into low range and punch it. You'll get the idea