[veltboy314]

I"m thinking about doing a mild rebuild on my engine. I want to change the piston rings(maybe), rod bearings, main bearings, Cam & lifters. Everything else I am going to reuse if it's good when I take it apart. It has been rebuilt before but I have no idea how long ago that was. It runs real strong but I want to go through it over the winter.

Its a 010 block & the heads I have right now are stock. the casting # is 462624. I plan on upgrading to a set of vortec heads soon. Which ones will be best on my 355?

What would be a good cam for this engine. I'm just looking for a nice cam that I can drive on the streets & it will produce enough power to win a few street races.

When I order the main bearings is there a certain kind I need to get. What i mean by that is do they come in different thickness. If so. how do I figure out which ones I need.

I know it was more questions I wanted to ask but I can't think of them right now. I'll add them later.

 

[DFER]

Darius:

Do a compressoin check on the motor before tearing it apart. If it checks out good, then I would suggest rather than pulling the motor down, upgrade the cam and heads. No need, imho, to rebuild it if it doesn't need it.

HTH,
Durand

 

[eric13617]

If it runs real strong now, then why do anything?
However, I like Comps. 256H for a mild 355. In my 4000lb. truck this is the only cam I have found where the truck will bark the tires when it goes into and comes out of passing gear, and every time it changes gears. Around 3000rpms.
If, I were to use it again, I would order the cam with a tad earlier intake close point to help with a slight amount of reversion. And it is not big, by any means. But it does create a slight lope.
I feel a 1800 converter would be a good addition. But a stock stall works just fine.
1 5/8" headers with 2 1/4" exhaust with an X pipe, works for the exhaust.
This cam needs 18 degrees initial timing, with inverted dome pistons, too. It idles at 750rpms. and will pull strong to about 5600.
PS. I have tried nearly every one of Comps. Extreme energy grinds in this engine from the XE250H to the XE274H. I like the 256 best overall.
I've been getting around 18mpg. here lately.