[HalfOunce]

Looking for some suggestions on engine combo for street/strip. This will be going into an old toyota pickup 2wd swb with 4.11's and 295/50/15's tire height = approx 26.5" tall and a th350 trans. I have no idea what this thing weighs title says 2500lbs. This is what i currently have.

400 sbc bored .030
4vr flat tops hyper Speed Pro i believe on 5.565 rods
stock crank turned/oil holes chamfered
Tourqer II intake may or may not use depends on combo
Holley 3310 750cfm v/s may or may not use as well

Also can get 93 octane all day long here

 

[runn141]

all looks good, you might worry about cooling the 400 in the small compartment and getting a radiator big enough to cool but yet small enough to fit

 

[HalfOunce]

I have actually been running it a little bit with a cheapy mild cam Melling 22200 and stock heads casting number is 3998997 i believe, cut for 2.02's.
It cools pretty decent till it gets over a 100F outside then it gets a little close to 210 in traffic.
I'd like to get some suggestions for a cam and heads for this thing...

 

[runn141]

imo the cam id use would be under 230 duration at .050

 

[HalfOunce]

the cam i have in it now specs off the cam card are as follows

cam lift: I .298 E .298
valve lift with 1.5's : .447
Lobe ctr: I 110 E 118
sae dur: 291
.050 dur: 223
.050 events: BTC: 1 ABC: 42 BBC: 49 ATC: -6
doenst lope at idle and has a lot of tourqe and not so much top end

 

[xntrik]

I recommend you get a copy of "Hot Rod (magazine) Engines" issue Fall 2006, a special issue on the newstands NOW until end of February. A special HotRod do-it-yourself-series magazine.

On page 20 is a story "500 hp For Cheap". A Joe Sherman built pump gas 383 with single plane intake, RHS IRON heads. This might be more radical than you want though.
******************************
If you want something more street livable, I suggest your taking some of the money and maybe up the cam....... use EngineQuest Vortec iron heads that flow 230/160 @ .500 lift, Edelbrock dual plane Air Gap intake, and step up the cam to about a 230* single pattern cam on a 108 LSA with as much lift as you can find, even 1.6 rocker arms, and get into the .550 lift area. Here's an

example=

Popular Hot Rodding magazine did a Steve Dulcich buildup called "Budget Sledgehammer" on an iron head, dual plane intake, 350 Vortec that did 447 hp for $ 3500. It appears RIGHT NOW on the stands as an attachment to their current issue in plastic wrap.

This identical set up with the same cam on a 383 or 400 will make gut-busting 400 lbft torque at 2500 rpm with peak of 480, and with hp in the high 480+ range, run power brakes, and put a smile on your face that won't wipe off for months. That is what I would do.

You could always add 12* more cam from a 355 to a 406, and step up from the Vortec 180s to 200s or 220s for a little more money. :thumbup:

http://www.eqcylinderheads.com/flow.html

http://www.chevyhiperformance.com/techarticles/41598_cylinder_head_flow_bench_database/photo_14.html

corrected link

 

[HalfOunce]

wouldn't a 64cc chamber head put compression to high for pump gas in a 400 with flat tops?

 

[xntrik]

wouldn't a 64cc chamber head put compression to high for pump gas in a 400 with flat tops?

Check these sites for sizes.

Just examples of proven combos.

You need to tighten your lobe centers about 4-6* for better power.

Contrary to popular belief, lobe center is more important than duration.

 

[HalfOunce]

both links i seen were same link..and all the heads i seen numbers for there were for 64cc heads.
Will that not put my compression to high for 93 octane gas? in a .030 400 small chevy with flat tops ...<<This i already have

 

[xntrik]

both links i seen were same link..and all the heads i seen numbers for there were for 64cc heads.
Will that not put my compression to high for 93 octane gas? in a .030 400 small chevy with flat tops ...<<This i already have

corrected link

http://www.chevyhiperformance.com/techarticles/41598_cylinder_head_flow_bench_database/photo_14.html

 

[xntrik]

both links i seen were same link..and all the heads i seen numbers for there were for 64cc heads.
Will that not put my compression to high for 93 octane gas? in a .030 400 small chevy with flat tops ...<<This i already have

http://www.csgnetwork.com/compcalc.html

compression calculator

 

[HalfOunce]

Looks like with flatops and 64cc heads on a 400 sbc that compression will be dern close to 11.??:1

 

[rreruption]

I would look around for a set of aluminum heads,maybe some Dart 200cc heads.I think they also come with a 72cc combustion chamber.Im not sure though.
And maybe a cam:
Isky
adv. dur. :280/280
[email protected]:232/232
Lift:.485/.485
LSA:108
http://shop.enginekits.com/osb/itemdetails.cfm?ID=253

 

[coldknock]

Before you go plunkin' money on more go-fast stuff I think you should address the differential. It will die a quick and ugly death.



Larry