Thinking of turning the 67 into an everyday driver, and was wondering what kind of power it would have.
Here is what I have, and if you need any other input, please let me know. These are all parts that I already have, so I am wanting to see if they will work together. Also wanting reliability more than performance.

454 plus .040
flat top pistons with single valve relief (-4cc)
balanced rotating assm. (9.03 cr using Mr. Kelley's calculator)
781 casting heads with 2.19/1.88 stainless valves, mild bowl clean up, gasket matched to felpro 1210 gasket (chambered checked out at 112cc)
Holley 300-42 alum dual plan intake, gasket matched
have both q-jet and 950cfm Pro Jection 4
Cam numbers as follows (GenVI pullout hyd roller)
GM camshaft Part number 12551622

IVO (BTDC) = -3.0, IVC (ABDC) = 47.0
EVO (BBDC) 48.0, EVC (ATDC) = - 4.0
224/224 at 0.050" Lift
LSA 115.5
Intake CenterlineL 115.0
.483"/.483" lift (1.7 ratio)

Ignition is Performance Dist HEI.
Headers 1 7/8 x 3 1/2 to 2 1/2 full exhaust

Trans is a 700R4 with 2k stall. Have also located a 73 Nova 8.5 10bolt w/3.23 posi unit and disc brakes from a 79 TA

Will this make a good everyday driver? Even with the small cam, I would guess 425hp/500lb tq. How far am I off. I can upgrade, but at the moment, all I'll need is a few gaskets to put this together, as I have everything sitting on the shelf, so I would like to see how it would perform.

Thanks,
Virgil

You won't have anywhere near that compression. If you use flat top pistons you must use closed chamber heads and you still really don't have enough compression for any sort of performance. I have never run that cam so can't give you any help.

Oger makes a good point -- assuming the heads are 119cc and a -.025 deck height your static compression would be 7.8:1. It would probably run fine on cheap gas with the cam you selected and make decent power for a daily driver, but you would be leaving a lot of performance on the table . . .

Making a few assumptions on head flow, compression, etc I get 399 HP with a 4500 RPM peak and 518 lb/ft max TQ at 3500 RPM. HP starts dropping off pretty good after 5000 RPM.

PS. I'd use the EFI in a street motor. I used the old 2 barrel version on a 355 years ago and it was pretty nice for being such a simple system.

Thanks for the replies.
Here is the link to the compression calculator that I used to come up with the 9.03 to 1:
http://members.uia.net/pkelley2/DynamicCR.html

I keep coming up with 9.03 static and 8.11 Dynamic compression ratio.
Bore 4.29
stroke 4.00
chambers 112 cc as in original post
head gasket .022 GM steel shim
piston to deck .020
piston minus 4 cc

Eric, I know this wouldn't be a 'prefect' combo, but I am more worried about reliability. If it is performance I was after, I'd slide the 589hp (dyno'd) 468 off in it. (It is for another one of my cars) graemlins/thumbsup.gif
I wanting to put the a/c etc back in this 67
Thanks again.
Virgil

I put the #'s in Dyno 2000 as close as I could. Didnt know which head style you had and cant use the IVO BTDC or EVC ATDC #'s you suggested- Those would have come up with about 120hp so went with 30 IVO BTDC and 40 EVC ATDC, but with all other #'s minus the -4cc for the valve reliefs bringing total combustion space to 112cc the max hp is 500hp and the minimum was 352. This being that the total CI is 462.8CI with 8.77 Compression ratio, running gas only. Torque was 512 @ 2500 then fell and 525 @5000 dependent on which head you used.

Looking at the 116cc total combustion room the compression drops to 8.55 and min max hp goes to 350 - 498 with all other #'s remaining constant.
Torque was 505 at 2500 then dropped drastically with the lp heads, and 525 til 4300 then dropped off the same.

Ditto on the compression b/c I woulda thought 7.9!!

I use the ROSS Racing Pistons site for static compression ratio calculations for the fun of it..

Then, either Pat's DCR calculator site or this one....

http://www.rbracing-rsr.com/comprAdvBMW.htm

by setting boost at .0001 and elevation at 600 feet for central Missouri..

pdq67

Thanks to all who replied. Think I will put it together and try a 'seat of the pants' evaluation.
All I'll really have in it money wise is a few gaskets, as all the other parts I already have.

Thanks, again.
Virgil

OK, I see where I was doing wrong...I was putting a -4cc for my flat top pistons (same as a 4cc dome, by Pat's calculator) graemlins/clonk.gif

I refigured and come up with an 8.5 to 1 static cr and and a 7.65 dynamic cr.
Sorry for the confusion/miusunderstanding.

WOuld there be much benifit from shaving the heads .010-.020?

Thanks,
Virgil