[84s104x4]

Just wondering if anybody would know hp and torque numbers for this 350
72' 350 block bored 30 over
edelbrock performer intake
holley 650cfm 4bbl
RV cam
Flattop pistons
10:1 compression (i think)
upgraded to electronic ignition
headers
high vol. oil pump

Thanks

 

[taylor]

I would say that 350hp would be a good estimate conservatively. My quess is with the Rv cam the torque should be nice for street use. Is this something you plan on putting in your s-10?

 

[84s104x4]

Yes this 350 is what i plan on dropping into my s-10

 

[taylor]

Cool it should make off roading fun. I am sure you thought of this since it is listed at the bottom of your post, but keeping the 700r4 and beefing it up is the best idea for something used often on the street. I saw a early style s-10 4 by 4 in an auto trader it had a 350 jacked up sky high with huge tires man it was nice. Good luck


would you know of the best way to post pics I would like to show off my bro's s-10. appreciate it

 

[BlackGriffin]

Watch that oil pump...

You don't want a high volume oil pump unless your block was specifically machined for it. The oil returns in your block aren't big enough and that pump will put all your oil up in the valve covers and rocker valley and it won't be able to come down fast enough. This will starve the bottom end of oil and possibly destroy your engine. But if you had the returns enlarged, it should be pretty sweet.

 

[84s104x4]

oh the pump is nothing special, just a little nicer than stock.

 

[BlackGriffin]

Try this site....

I am not exactly sure, but try fastmotorsports.com, of just look up fast motor sports. They have a "Cook Book" for a 290 hp 350, and it is almost exactly the same as yours except it has lower compression. So yours will probably make like 305 to 310 hp, in my opinion. That RV cam should make for nice driving and a sweet exhaust note.

Are you the one in a different post wondering about an oil pan clearance problem? I checked my Summit catalog, and the oil pan plus pickup is $250. It is supposed to make it a lot easier though.

Good luck!

 

[84s104x4]

yeah i was in another post asking about oil pan clearance. But i wanted to try to stay away from buying that oil pan for 250.

 

[toad713]

how often do you go off road? reason i asked is you said you were going to use a 350 trans with that motor. with alot of hard use a 350 is not a good trans to run with alot of power. personally if it was me i would buy a good 400 trans and beef it up cause if you build them up right they are like bulletproof. i should know built 3 350 trans for a guy in one month and then he went to a 400. have not build one for him since and that was back in spring.

 

[84s104x4]

actually i really wont be doing much offroad at all. Just in town driving. so i thought my fathers th350 would be alright for this. i just need to get it rebuilt before i drop it in. do you think i should run a stall converter or just a stock torque converter.

 

[BlackGriffin]

My 2 cents....

Is to stay with the 700R4. Not only will this provide better acceleration than the TH350 due to a steeper first gear, it will also give you lower cruising RPM's which should help your gas mileage. I would advise sticking with the stock converter in either case, as your relatively mild 350 will be making a bunch of torque but not a lot of RPM, which would be why you would need a higher stall speed. Yep, stay with the 700R4 and I guarantee you will be happier. Heck, I am putting a 700R4 behind my 396. Also, you should really match your rear end gears with your tranny. With a TH350, go to like 3.08 or 3.27 to 1, with a 700R4 go to like 3.42 or 3.73 to 1. Your cruise RPM will be the same either way. But if you run a 4.10 behind your TH350, you will be mad when it tops out at 85 MPH like my dads old 3/4 ton.

Hope that's useful,
Nat

 

[toad713]

you said you were going to drive it around town. then i would just use a stock converter cause you would prob not notice the stall converter unless you do a lot of racing.