I was planning to pull out the half-big cam and lifters from the 383 and plug them into the new 512...when I discovered a problem and need to buy a new cam set.

The car is mainly street use, with the occasional burnout and full throttle accelerations. It may see some light strip use, mainly for fun, since the body is not ready for serious action yet.

What would be a good cam for this car?

B-body, std 383 converter (will be upgraded to higher stall later), 2.91 in the rear, 14 in rims, mostly street use.
- 512 cui, 12.5:1 static compression (e85 fuel), based on a 400 B-block, Stealth lightly ported heads, M1 single plane intake, 1200 CFM throttle body
- Multiport sequential direct injection and ignition, E85 fuel

I would like to have enough vacuum for the power brakes (i.e. around 12 in minimum), and I want the idle to tell that there is something hotter in this engine.

If it were me I would run a solid roller. Their street roller profiles pull pretty good vacuum. Seems you could go with xe292 or even the xe296, both solid rollers with under .600 lift. That motor is going to make a ton of torque with those cubes, and standard port head.

That converter will stall higher in the 512. Why did you build a street motor with 12.5.1 comp?
Mick

Thanks Viperblue, I'll have a close look at those cams!

i would also say go solid roller while you are at it. if you think the lifters are alitle to expensive have a look at nitroz there was a set of new in box bb mopar rollerlifters for sale there awhile ago and sometimes stuff is realy slowmoving on that site.

that possible headgasket isue realy sucks becuase 12.5:1 is alitle low for E85 atleast in smaller engines maybe your extra volume will help in making enough cylinderpreasure to make it work nice,but a friends little 383 seems to run the best at 50-50 E85/pumpfuel with 12.8:1compresion.

Now that I think about it this 505 project is similar to yours and uses this camshaft. Its in the tech archives on this site as well.

http://www.popularhotrodding.com/tech/1007phr_big_block_mopar_engines/

Many thanks for that info Viper!
It sure looks interesting, is very similar and is a good reference point.
Cheers,
Martin

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Now that I think about it this 505 project is similar to yours and uses this camshaft. Its in the tech archives on this site as well.

http://www.popularhotrodding.com/tech/1007phr_big_block_mopar_engines/

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