i currently have a 350 block of the car it has 80+ thousand and just wanted to refreshen the motor by putting new crank and main berings, rod berings and hi-flow oil pump.


what eles should i consider in doing while the block is out. also on a tight buget so just let me know what ya guyz think.

 

Step 1: Skip the high volume pump. Use a regular Melling M-55, a Mr Gasket 26 spring, and a Melling 55-S screen, and a IS-55E which is the oil pump drive shaft with a steel sleeve instead of a plastic one.

Step 2: Do all the little things that make a difference. Drill the 2 plugs in the front of the block on either side of the cam (NOT the one above the cam) with about a #65 or 70 drill bit; you'll be putting in new rings of course, pay careful attention to their end gap, you don't want either too little or too much; etc. Put roller parts wherever you can afford: lifters, rockers, etc.

Step 3: Power comes from the heads. Do some port work, especially in the bowls; use valves with undercut stems; use positive valve guide seals; etc.

Step 4: Choose your cam wisely. Pick one that works well with your induction system, whehter TPI, carb, etc. Don't over-cam it, don't get the cheapest cam you can find, pick one that matches the rest of the car ("car", not just "motor": be compatible with converter, gear, etc.) and your intended use.

 

While the block's out you can clean it up all the parts and paint them. Not only does it look better, but it's easier to find leaks.

 

nice info rb83l69

not a bad idea kfoley

any1 eles can help give me some more tips

 

get a 400 crank, bore it 30 over and get some new pistons. BAM! 383

 

I redoing the 350 for my 84 TA, I haven't taken it apart yet, but I'll atleast put new rings, pistons, bearings and gaskets in it, maybe bore it 30 over and make it a 355

 

I'd say new rings, nice set of heads, nice cam, open element, new plugs, new seals, new gaskets, rebuild the carb, new cap and rotor (at least), new plug wires just the little things

 

thanks for the replies just for a note its a tpi 350 thats getting the rebiuld or refreshning

 

Then maybe some new injectors, bigger throttle body, new chip for the computer, lol

 

It has been my understanding the the engine will run just a little hotter with the .030 overbore on an L98. It your bore is good I would leave it alone but with a honing. If not then go .030 over. I'am going to be doing the same thing to mine and it only has 65,000 miles. I will be installing flat-top pistons and the ZZ4 cam. It has most of the other bolt on goodies. Looking for around 300RWHP. I'am at 256RWHP now. Allen

 

Technically it might run slightly hotter, but on the street it would be such a small difference that it wouldn't be noticeable.