(Tried listing this in the body forum with no response)

I think some of the guys here are running 671s on their 70 Chevelle, so I was wondering if they could share the dimensions on how to cut the hood. It's a big block and I'm going to run a standard size SS hood from Glasstek.

In case it makes a difference it's a Weiand 671 and the two carbs are the 600cfm double pumpers.

Block is standard height.

thanks for help,
Dan

I would think you can just take measurements from the fenders and cowl to the blower and cut out whatever is neccasary. You'll just have to subtract from your deminsion the amount of gap you have between the hood and fenders/cowl.

the best way to do the job is to get a huge piece of card board cut it to length to match your hood get a couple trim boards from your local lumber or hardware store use them as outter edges to keep the card board from bending take your springs off your hinges bolt the card board and trim boards in place as to open and close so the card board dont bend in the middleand begin to make your pattern . remove the card board lay it on top your hood tape it in place and scribe the cut out on to the top of the hood . then take a 4 inch grinder and a cut off wheel and begin to cut. goin by some one elses measurments dont gurantee you a perfict fit as thier body might be alinged diffrent than yours or ,you or them may have small frame damage and you will end up with a bogus cut./ another method is to use lengths of string from inner hood line to blower then transfer the strings to your hood with tape and scribe a mark.. good luck. with some patience you will do a good job. just remember to check and recheck your figures before you cut.

Originally posted by motown/malibu:
the best way to do the job is to get a huge piece of card board cut it to length to match your hood get a couple trim boards from your local lumber or hardware store use them as outter edges to keep the card board from bending take your springs off your hinges bolt the card board and trim boards in place as to open and close so the card board dont bend in the middleand begin to make your pattern . remove the card board lay it on top your hood tape it in place and scribe the cut out on to the top of the hood . then take a 4 inch grinder and a cut off wheel and begin to cut. goin by some one elses measurments dont gurantee you a perfict fit as thier body might be alinged diffrent than yours or ,you or them may have small frame damage and you will end up with a bogus cut./ another method is to use lengths of string from inner hood line to blower then transfer the strings to your hood with tape and scribe a mark.. good luck. with some patience you will do a good job. just remember to check and recheck your figures before you cut. Many thanks for that good advice.

Dan

He's right on with that idea of the cardboard. I just cut up a huge box that my widescreen TV came in. If you can get hold of one of these you wouldn't even need the lumber. Just cut the cardboard to match the hood (trace the hood outline on the cardboard), then cut to clear the hinges. Take some measurements to rough it in and start cutting/ fitting the carboard until you have the location and the pattern where you want it. Then trace the finished pattern back onto the steel/glass hood. When you are working the carboard pattern, make some reference marks on the fenders to keep going back to (apply some masking tape and use a marker to strike some lines).

depending on what kind of scoop you are using, will determine how much you have to cut-as you raise the hood, it will come forward a little,
and there is where a lot of the interference problems occur-i like the idea of cutting out the cardboard and using it
i have always mounted the blower, taking some meas. and cut, trial fit, and cut more
an old saying, meas. twice, cut once-cut on the small side, enlargen as needed(dont use hood springs till your done) and yes, its starting to snow

Thanks Guys. Everyone is right I want to cut once and have a nice fit. I hear the glasstek hood is a real nice fit anyways. Here in Ephrata, PA, no snow yet, but I am watching.....let it snow...let it snow. graemlins/hurray.gif