Hey fellaz are there any write-ups on any 350 builds that make 400+hp, need a build to copy from inside out/top to bottom.......was gonna go with a big block but if I can get good hp (400+) with the 350 i already have why should I???? jus asking cause im not an engine guru my budget depend on how many overtime hours im willing to work to get what I want so its all on my drive, Im not looking to race jus need muscle ballz....jus in case

 

Here's a couple of engine combos for you to look at. Some might not be too streetable.

http://72.22.90.30/phpBB2/viewtopic.php?t=72575

http://72.22.90.30/phpBB2/viewtopic.php?t=69233

http://72.22.90.30/phpBB2/viewtopic.php?t=51400

http://72.22.90.30/phpBB2/viewtopic.php?t=39647

The last one is right up your alley. I think anything over 400HP with a 350 gas block is not going to be very streetable. Higher compression pistons and high lift cams won't like pump gas and your power brakes are not going to like minimul vacuum to the booster. I met (80 Rocket) a couple weeks ago. He seemed like a real nice guy and very knowledgeble. I heard that he has a 350 short block for sale. You really should contact him if you want to save some money and get a well built motor. PM me if you want his phone number.
Back in 2004 a friend of mine wanted to build a drag car. He was fresh out of high school and worked at my shop as a clean up kid. He didn't know much about mechanicals, but he seemed eager to learn. I gave him a nice '86 Cutlass with a fresh Turbo 400 and a 12 bolt rear end. I also gave him a 1972 350 engine along with a 330 crank and some Ga BB heads. I showed him what needed to be done to port them but he didn't get too far. I finished the heads for him. I probably have close to 80 hours into them. I bought a bunch of parts for this engine and paid for all the machine work. My friend went into the military and lost interest. He came back from Iraq, got married and had two kids. The car was scrapped but I got the trans and I picked up the engine from the machine shop last week. I kinda lost track of how much money that I sunk into this thing, so last week I got out all the receipts and put together this spread sheet. I'm going to sell this engine, but it's deffinately not for you. The compression is too high for pump gas and I really think it's not going to be very streetable. I'm sharing this with you just so you can get an idea of how fast the shlt adds up.

Olds 350 CI Race Engine


1972 350CI engine block core
1967 330 steel crank core
1967 Flex plate
1972 Damper
JE Pistons Custom 2300077 $680.75
Rings J100F84080-5 $100.00
Rod bearings 02-5029 $60.00
Main Bearings MS805P20 $60.00
Rod bushings 02-5029 $40.00
(2) Heavy metal slug 1”X1” $70.00
ARP rod bolt RB-200 $58.00
Freeze plug kit FP-640 $14.00
Race Cam Bearings RCB-499 $69.00
Gasket Set GS-550 $95.00
High Volume Oil Pump SP-754 $69.00
Bolt on pick up PU-3 $35.00
J&S 5 Main Halo $250.00
J&S Main Stud kit $85.00
Machine Work Performed by LAM Racing Engines


Install rod bushings, Fit/ assemble rods & pistons,
final polish rod beams, Recondition rods with ARP bolts-
includes R&R bolts, machine oil relief grooves in rods,
deck block, piston height + .0001,
Balance rotating assembly, regrind crank
Rods - .020 Mains - .020, install slugs of heavy metal (mill),
Install main studs, mill for main girdle (halo) to 2.175 depth of caps
Dial bore gauge main bearing bores, low limit to middle of spec,
Final wash block and install cam bearings & freeze plugs, check main
bearing clearance and ring end gaps. Total machine shop services - $1311

total investment- $3160.75
109-0977_IMG.jpg

 

[The last one is right up your alley. I think anything over 400HP with a 350 gas block is not going to be very streetable. Higher compression pistons and high lift cams won't like pump gas and your power brakes are not going to like minimul vacuum to the booster.]

Hate to pick this apart but this is incorrect. I promise you a cam with 220 duration at .050 and .600 lift will drive a whole bunch better than one with 240 duration at .050 and .450 lift, lift has almost absolutely nothing to do with idle quality and drivability, duration and overlap are what effect that.
And if anything higher compression will help the power brakes on a motor with a big cam.

400hp won't be that hard to do for a street application. It's all in the combination.

 

And don't forget heads - either Edelbrock or heavily modified cast-iron are gonna be $2000+, and a manifold with carb!
It gets up there, quick!
BB is easier, quicker and cheaper to 400HP!

 

I beg to differ with this. It will not take $2000 to get a pair of 5-6-7 heads to get 400 HP. I also think (when done right) can be just as satisfactory as a BB. So stuffing a BB in everything is not THE only answer.

 

check this bad boy out. http://highperformanceolds.com/phpbb...php?f=1&t=2870