HI, I have a 4 bolt 350 in my 84 Camaro right now and its getting pulled out soon to get changed to make her faster. I just got my engine built last winter now adding on to it.
here is my combo right now.

6in k&n filter
Holley 750 4160
1in nitrous express plate
high rise hurricane single plane intake.
ProComp 210 heads 67cc chamber
high volume/pressure oil pump
1.6 Full roller rockers
9.6:1 hyper pistons with hasting rings +.060
summit 510/533 cam that's with the 1.6 rockers
Eagle 3.480 crank
Chevy stage 2 rods

here's the jiff of it.. The car runs good with this set up. I'm thinking around 425hp. I want it faster!!! I have 3500 boss hog converter with th350 and 3:73 rear with 295-55-16 tires I want it to have more hp so this is what I'm changing. The car is mainly race.

I'm going to put in 11.8:1 compression speed pro pistons
with summit .43 copper head gaskets
Crank scraper
Stock volume/pressure oil pump
Possibly have crank lighten? is it worth it?
keeping the summit cam--- what do you guys think? is better for less than $200
molly rings gaped for 150hp nitrous-- have cast right now.
Possibly have heads ported and polished by machine shop??


That's about it for my engine hop up. what do you guys think it will run for hp. and what else should I change

Let me know what you think..

Thanks

 

Unless the block and deck are o-ringed, you won't want to use the copper head gasket. Use a MLS head gasket from Felpro or Cometic.

If you change the pistons, you'll need to get the rotating assembly rebalanced.

What does it run now?

 

If you are going to replace the pistons and have the rotating assembly balanced, I would just make it a 383 stroker.


What does it run??
What tires are you running?

 

It is getting balanced.. with the new pistons
Im thinkin it runs in the 12's without nitrous..Its my late night rice racer.. I have a 200 NX kit but have no spayed it.. because my rings are not gaped for it.
I don't want to stoke it because I spent my money on the Eagle crank. and I like revving alittle over 8 grand witch I'v heard 383's don't like to much
any thing else I should do?
I did not know about the head gasket's Thanks for the info
Its got some nuts it twisted up the stock steel drive shaft. I had a 3.5 steel one made for it.

 

I dont understand why you would want to crank it to 8k when thats way out of your cams powerband.

Plus, what is the HP/rpm rating on those rods? Im guessing they are I-beam rods?

And I would suggest switching to a DP carb over the VS.

 

I like Revvin it high.. It hauls revs up fast.. Im not sure about the rods there chevy 2 with arp bolts probly get some h-beam and a 850 carb to.

 

I highly doubt that. Are you basing that on a factory tach or a good aftermarket one?

 

I have a Sun pro Tack!!! I'm sorry It does not pull as hard as it does at 5400 but it wants to keep revving up and going..

 

You're just wasting time reving it way up there if it's not pullin good.

 

Darn Right!!!! Its my car I can drive it how I want..
The Thread I wrote is asking If the stuff im chaging wil help and what else I should do why im in there. also what hp numbers I might see. And if any one else has a simular combo.
Thanks

 

Yes it is your car, and you did ask if the "stuff" you are changing will help.

If you want to go faster we can help with advice. If you want to crank it to 8k which would be a more topend motor, Im sure we can figure out a setup for you. But I just dont think that you are going to get both out of the same motor. One would be for drag and the other more for land speed challenges.

First off, there is nothing wrong with staying with the 3.48 stroke crank. I would however stepup to H-beam rods.

What are the flow numbers for you heads? With those numbers and the info you have "TH350, 3.73 gears, 3500 stall" we can help pick out a cam.

With 11.8 to 1 compression, I would say you will be borderline 93 octane and race fuel. The right cam may help bleed off some pressure.

We built a 408 for my friends Nova. He cranks it to 7400 and runs 6.20's in the 1/8. Gears right, it will run low 9's in the 1/4.

I run 12.01 at 112 in the 1/4 and 7.64 in the 1/8. I was shifting it at 6500, but ended up running faster shifting out between 5800 and 6100. I found the car wasnt pulling after that and was slowing me down.

So long story short, Build a motor were the parts all work together to be faster. Build it with quality parts and you should be able to stand cranking it to 8k on occasions, although, you will be faster shifting at a lower rpm.

 

hey check out dougherbert.com i have a friend running a billet roller from him cam was only 189.00 bucks ,lifters were like 169.00 you want rpm go solid roller ,check springs on your heads you already have conv. and gears but those 210cc heads will need lift to operate properly that why it screams up top because the heads work well in that rpm bigzeke355 92bird

 

Thank you bluegrassZ and bigzeke.. Im not sure of the flow of the heads but I will check into it. Thanks for the cam webside Ill probly be going to a rollor. I am going to buy a set of scat h beam rods.

 

Yeah, Doug has real good deals on roller cams.

Definatly go with a solid roller cam with springs to match. If the heads flow well, id say a cam close to .600 lift. A Super Victor JR intake and at least a 750 DP. I personally would go 383 if you can swap the eagle crank for a 3.75 stroke.

I am running a Holley 750 Street HP. Its a great carb. The 950 race HP would be a good investment. We tried one on a vortec head 350 with a 292 hyd cam and it screamed.


Oh yeah, the 408 we built has Vic Jr 215 heads that were P&P and flowed well over Edelbrocks numbers. We called Edelbrock and told them what our flow numbers were and they were begging us to tell what we did. They were suppose to be good for 580 hp out of the box but they needed work. Now he is pushing close to 700hp. This motor started out as a 388 stroker. We then picked up a 400 block and used spacers with the stroker crank.

A properly built 383 should crank to 8k but making power at that range is a different story. Not to mention not real good for the motor.

 

Here are the flow numbers for the heads I found. I do not know if there accurate but it says its procomp 210's I'm Going to buy a solid roller I just have not figured out what would be righ for my combo. I have the 3200-3600 stall coverter and 3:73 gears probly going to go to a spool 4:10's when my rear blows... Bluegrassz What was the compression ratio on that 408? what carb is he running on that? How much Hp over the hurrican would the super victor put out? I'm Going to keep it a 350 and the heads are just going to get some slight port work.

Flow Numbers
Intake Exhuast Flow
.100 63.0 .100 52.2
.200 117.1 .200 97.8
.300 173.10 .300 132.9
.400 212.55 .400 161.9
.500 236.3 .500 187.0
.600 251.2 .600 192.2
.700 252.0 .700 198.1

 

If those flow numbers are correct, I would stay with a cam no larger than .600 lift. I would go with a 4k stall at least. I myself am running a stall thats rated 3500-3800.

You said 4.10 gears and a spool, Are you going to upgrade to a 12-bolt or a 9 inch ford? The only spool offered for our 10-bolts is a mini spool. Not what you want for drag racing.


On the 408, He is running a 950 Race HP Holley. The compression is 14.0 to 1. He runs 114 race fuel and the block has been oringed and poured. This is strictly a race car. He runs a PG with a transbrake, 5.56 gears and a 31" tall Hoosier slick. I have seen him drag the rear bumper. And on top of that, the driver is 6'4" and weighs 400 lbs. Now put a 150 lbs driver in that car and watch it go 5's in the 1/8.

I dont know how good the hurricane intakes are, but I would use either the Super Vic jr or a tall Team-G. These to me are some of the best intakes on the market. Just my opinion.