ok guys heres the deal. i have an 89 auto that is completly stock. i have a set of LTs but im waiting to put em on. i was told a GMPP 846 hyd cam ,SR , AFR 180cc heads with 1.6 rr, hyd roller lift kit, BBK 52 mm TB, and accel 30 lb injectors would be a pretty good build.

I know this may be stupid or w/e but i want you guys to build me a engine. the car is my DD and i dont have the money for forced induction but i do want more power and more torque. gas and streetability isnt really arent concerns but nothing to extreme.i would like between 400-450 hp and torque but then again im going to piece this together. i know ppl still argue between intakes heads and everything, but just tell me what u would do or if u have a car already built like this. i would appreciate a build list, parts numbers and stuff like that. i dont wanna copy ne1's car but i do want to get a great idea.

thanks guys

 

 

What is your budget?
383 maybe

 

i dont really have a budget or a time frame to get this done. i just know what i want and thats a screamin 89 vette. so throw out some ideas. 383 sounds wonderful u give me a parts list and some info and ill do it lol.

 

The stock intake has to go....a 383, AFR's, LT's ,intake of your choice, big fat cam, chip and your 30 pound injectors. Hyper pistons. if you port your brains out on the stock stuff you might get to 400....at least go with bigger runners....you got to get the revs up for HP...this is the build I wish I went with instead of my nearly stock one.

 

Get the biggest you can afford

What it takes to make 400+ hp on a 383.
Pick your poison
http://www.compcams.com/Community/Ar...?ID=1737510521

 

What gears have you got?

 

Here´s my list.

Run a Eagle rotating kit, know many that runs Eagle and have had no problems at all. Nice price too.. Here´s an example.

http://www.cnc-motorsports.com/produ...252&CtgID=9048

Top it up with the AFR 195cc, or more =) ask them what they think would be best for a nice 383ci. I built a motor for a friend using Afr 195cc, in a 350ci though, and he kicks a** with that Vette, daily driver... Good heads!! expencive tho.. http://www.airflowresearch.com/store...ed909ba882ce61

Go with full roller rockers, i often use Comp Cams steel 1,6:1.
Something like this http://store.summitracing.com/partde...6&autoview=sku

Depending on how you want the car to run, you will have to buy a cam after that. Comp cams have great support helping you to find the best for your car. Make sure you get all the things needed for the cam, the springs etc.

Intake, i ran with the Lt-1 intake a couple of years. I was really pleased with that intake.. Thats a warm tip. Or a Stealthram or Superram. They sure work good pretty much all of them.

Here´s a link to a guy that rebuilds the Lt-1 intake to fit on the L98.
www.lt1intake.com

That should get you started =)

/Johan

 

ok guys, thx for the posts so far. love what im hearing. lets keep em coming

 

and i have 3.07 gears

 

I don't see anything wrong with your list but I'm not familiar with that cam. I think a lot of peple have used the LPE 219 with the SR. If you will stay with 350 CI the 180 CC heads are good. I don't see 400+ HP here.

 

It depends on what rating used for the goal. FYI: rwhp is typically 17% lower than crank. To be honest, I don't know how much less auto's put down than sticks. But, I know it's lower.

With that in mind, your plan isn't that far off. I think the superram is pretty well matched to the gears you have. With the extra power, you'll need sticky or wider tires -- or both.

I can say with absolute certainty, the 195's will get you closer to your goal. And, though the GMPP cam you suggested is a decent choice, I'm going to suggest another option.

The LE 219 cam would be good -- if the price was $300-$350. On Summit, the Accel 219 (same cam) is priced stupid high. Instead, consider calling Comp Cams and requesting a single pattern 218 cam -- built off their 218 XFI lobes. Go with 112LSA -- just like the LE version. You'll have the same performance with a $100 savings. This cam option will provide better torque than the GMPP option and, with the AFR 195s will provide all the HP you need with a superram/195 combo.

As for the goal, 195s with a superram, LT headers, and XFI cam (on a 350ci motor) will land you well above 400hp at the crank. With a good free-flowing exhaust really 450chp is possible. How much of that gets to the ground, I'm not so sure. Definitely not 400. But close enough to make you happy.

You'll need to de-screen your MAF. I think the 52mm TB is the right choice.

Higher gears would be good, but the superram does build a b-load of torque. Probably, the shortest-runner intake you should put with 3.07 gears.

Honing/porting the SR runners/base would get you more top-end.

 

Tighten up that slush box. Do you want more stall from the converter?
If it's your DD hi-stall gets old quick.
Taller rear gear will increase your fun SOTP factor, but puts your RPM's in a higher range. The TPI runs out of breath at 4800 RPM.

 

You might take a look at Vic'89's current buildup; last season his normalized trap speed was 119.6 with a 3,280lb '89 Vette, which computes out to 437chp. I believe he still runs a 350cid engine with an A4 but may not still be using the original 3.07s.

 

no hyper. pistons buy forged (if u have $$ within budget) hyper are too brittle, then nitrous will be your best power maker for the $$ , or buy some really nice heads, AFR's are good

 

Good thing he said he's using a SR then, eh? (It's in the OP.)

 

He says it's completely stock but was told about the SR.
Read the 1st paragraph.

 

ok i pmed Vic and from the look of his numbers i think i would be perfectly happy with a setup real similiar, thanks for the heads up!
And theres no need to start a argument lol everything is still up in the air. i was leaning towards the SR but who knows, thats why i started this thread was to get everyones OPINIONS in one place so lets keep em comin boys, ur helpin out alot

 

OK, I'll bite. This will be a budget build. Go to a junk yard and find a 400 block. Take to a machine shop and have it bored .30 over; no need for a forged crank, cast will do. Use some Chevy "pink" rods w/ APR bolts. Hyper pistons will be fine. Shoot for a compression ratio of 10.5 to 1. Find a used set of Vortec heads; they are steel, not alum, but will work just fine. Don't think that AFR's are the only or best head to use; there are many other choices out there. You have a computer, just it to find some other, cheaper alternatives.The intake is up to you, I would go w/ a Mini Ram. As for a cam, 846 would be fine, get some RR's and you are good to go.

Randy

 

I don't see anything wrong with what you are trying to accomplish. I would go 383, if you are building a new shortblock. You can get a 3.75" 383 crank for under $200 anymore. Just external balance. And you could even reuse your stock rods with better bolts if you are really trying to keep your budget low. I have done several 383 S.R. AFR 195 motors. I usually would use the 219 cam, but a similar cam from Comp as mentioned would also work. And this is a proven combo. Tuning for it would be easy. Because the tuners out there have done many of them. You would easily have 425-440ish fwhp, and probably 480+ fwtq. The last one I did gets 27 mpg and would easily run 11's at sealevel.
BeachBum had pretty much the same motor and ran mid 11's and still had good drivability and mileage.
I think it's a good proven configuration with real good street manners.