[Sandman]

Have just purchased modified 400 ci chev running stock manifold and 650 cfm vac sec, I know internals have been modified but do not have spec sheet on motor. Need to start with basics, can anyone help with block castings etc, so I at least know which model I have, also concidering high rise manifold.. Engine is real strong looking at hi rize more for looks than anything, what if anything will this do to performance, will anything else need to be done to acomodate.

Cheers

[KULTULZ]

-Chevy Block Identification-

[HotRodS10]

Sandman.....if you're gonna go with a high rise intake it would be wise to also do a cam swap and match your intake and cam. Edelbrock offers some good performance packages. Have Fun...HRS10

[HotRodS10]

The link KULTULZ posted will probably work but heres another just in case it doesnt. http://www.mortec.com/castnum.htm

HRS10

[Sandman]

Thanks guys the web link has sorted that problem, will check it out tomorrow.
Another question, clearence to the bonnet is not huge engine currently running a top hat element is 40mm high and about 250mm diameter, seems very small for the size engine, is this likely to be causing air flow restriction, running K&N element..

Cheers
Sandman

[rssschevy2]

Sandman, love that lingo. Not sure about the size of your filter, i guess a 9" element by 2-3/4". One of the car mags. did a test on flow ratings and horsepower losses. any how a smaller ellement did not lose or restrict the air flow by much! They were testing K&N filters.But Sandman if you put on a high-rise manifold such as a rpm manifold it will probebley be higher, taller than your stock manifold. So you might need to get a dropped base or recessed base air cleaner, this will lower the air cleaner to clear the bonnet!

[Sandman]

Cheers RSSSCHEVY2, I guess the lingo comes from living 10,000 miles away from you guys, way down under in New Zealand, yea there are petrol heads down here too and this one loves Chevs, and the more cubes the better.. Thanks for the info.. If I go the high rize way clearence will not be a problem caus we will bust through the bonnet through a big bug catcher on top etc.. The clearence issue is only if I stay with the stock manifold.. Am happier now in the short term based on your info..

Cheers
Sandman