Posted a topic on this a while back. Its an engle cam that I have owned for several years. Still in the great debate with myself over crate engine vs home built bbc. One of my friends is an excellent mechanic/builder and will build me a great engine for a fair price plus would like to help out the ol boy if I can. What I need from you guys is to specify me a punched out 454 built to match this camshaft spec. Got some idea but I respect yalls opinions being fellow chevelle owners....

The engle part number is HL 25/26, solid flat tappet
here are the specs.:
valve lift> 560int/580exh
adv dur> 286int/292exh
cam lift> 330int/342exh
dur@.050 (dur@.050)> 242int/252exh
lobe center> 110

Car is a '67 with a 3.42 rear gear. Will have a 700r4 soon so I will be getting a new converter in the process to also match this cam spec. Car has power front disc brakes, a/c, power steering....will run it at the strip maybe sometime...:thumbsup:

thanks in advance for any reply....kevin

stock rods , stock crank , maybe some rod bolts ! some cheap forged pistons (imo) about 10.1compression (no less than 9.5 imo) an rpm manifold ,a holley 800 , and some open chamber oval heads . 3000 converter , gears are iffy but will be ok !

I'd make her 10.5 to 1 and go!

pdq67

ok what parts do you wanna reuse crank, rods, and heads? also what is the goal street, strip? I would start with a dual plane intake like a rpm performer can get one on here for a great price see link. How far of an over bore? if you need to get a crank would you rather buy a stroker kit? what heads Oval or rectangle port? open or closed chamber heads? we really need more info to give and honest and correct parts list.
link for intake:

http://www.chevelles.com/forums/showthread.php?t=258418

Kevin,

Pretty simple, but potent build, IMO. :thumbsup: Pretty standard stuff on Team Chevelle. Since you want to build around that cam the cam specs give me an idea that you want a street/strip oriented setup. I agree with the others on the compression, shoot for between 10 and 10.5:1. Performer RPM or Air Gap RPM, 800 or 850 cfm carb, 1 3/4 headers, a 3000-3500 converter, 2 1/2 or better yet 3" exhaust. I think the gears are a good compromise between highway cruising and strip action. Several guys on the board deep into the 12's and faster with 3.42's. Jeff's combo comes to mind, with similar cam specs, actually. Make sure you let us know how it goes.