Let's hear cam suggestions
 

So the motor builder got back with me today and long story short I got screwed on the cam I bought...not even close to what I was told it was and its not even a roller cam...flat tappet according to comp...sooo that's all I'll say about that lol

Moving on..

454 based...030 over
dart iron eagle heads with 120ish cc chamber
JE flat tops..shooting for 8.5:1 comp
eagle rods
CMI headers
I'll post a pic of exhaust but its dry to tips I believe
If not this year next year it will have a 6-71 blower at 6-7 lbs boost
right now it will have a 256 blower at the same 6ish lbs but I'd like to build it for the 6-71 as that's the overall plan
dual 800 holleys


What I'm looking for in a cam...

Obviously the best performance without sacrificing a few things
I want it to give you goosebumps when I start it
I want a good attitude around the dock..no stalling or having to feather it to keep it running
Not sure if reversion will be an issue..I'll post a pic of the exhaust
RPM range will probably be 5600ish maybe a little more..don't want to twist it too hard especially with the 256

So lets hear some suggestions guys....

Custom grind?? from who??
off the shelf??
I know the 731 is suggested a lot but is there a better option for my build??

Any help would be much appreciated

Thanks!!

Stewart

https://cimg5.ibsrv.net/gimg/www.off...64589b6cec.jpg
https://cimg8.ibsrv.net/gimg/www.off...da24d60f11.jpg

this is my exhaust setup for reference

May I suggest...

https://cimg1.ibsrv.net/gimg/www.off...a4905bbf18.jpg

lol so pretty aggressive then??

I'd do the 741 over the 731 if you plan on going with a bigger blower at a later date. Not that I have any science behind it, but I believe there a many builds on here with the 741 blower combination and it makes good power.

I'll look into that thanks!! that's a crane 741 right?? also will that work in a gen 5 or whatever mine is with a cam button or do I have to upgrade to run the step nose with that cam??

http://www.jegs.com/i/Crane-Cams/271/139021/10002/-1

this one is the 139021 and specs are slightly smaller than the 741

https://www.summitracing.com/parts/crn-139671

this one is very close to the 741 and is the crane 139671

both of these will work in my engine from my research as the 741 is a step nose and requires the retainer plate

opinions??

the 139671 has a 114 lobe separation...is that too much too little?? not a cam master here clearly hahhaha need some advise on these numbers because I kinda know what they mean but not really lol

The 139671 is the 525EFI cam. It will have slightly better manners around the dock.

I don't think you'll see any big differences between any of the ones you posted. I'd prob go with the 525EFI cam.

Care to elaborate?? is there a bigger/better option I didn't post?? those were just the 2 I saw close to the 741 that was recommended??

Thanks!!

741 cam (525efi) is plenty of cam for 454. That cam is not hard on the valvetrain, and if you have ever heard a 525efi (without mufflers) they definitely get your attention.

My cam is similar to 525efi cam. Its a crower 236/245 , .629/.632, 114lsa . 468ci. Ive ran it with 177 blowers, 250, and 420 blowers. Sounds good , and idles well. With dart 308s and cam installed at 110icl, peak hp was at 6000-6200. With eq heads that flowed better, and 114icl installation (4* retarded), it pulled to 6500rpm. Blowers will typically raise the operating range of a cam, esp a decent sized one.

i defintely would not go smaller if you want to make some steam down the road.

Yea I def plan on upping boost and power down the road...when the 6-71 goes on I'll cross that bridge and yea I don't want to have to do a cam swap when I make that transition

Also spoke with the engine builder this morning and they agree those cams will work well...he is doing some research and I have to call him tomorrow morning with some other options from different manufacturers just so I know all the options

Supercharger/Nitrous Retro-Fit Hydraulic Roller Cam - Chevrolet Big Block 299/304 - Lunati Power

opinions on this one?? its like half the cost of crane....

https://www.crower.com/camshafts/chevy-396-454-hydraulic-roller-cam-253hr260-late-model.html

crower option...maybe a little big for my needs

http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=CC&Product_Cod e=11-456-8&Category_Code=MARKIVCAMHRXM

comps offering...looks solid??

any more opinions would be greatly appreciated....need to get a cam to the builder asap so I can stay on track with the build

Thanks!!

Your links are broken and don't work for me except the Lunati link.

Edit, I figured them out. Are these comparable billet cams? They seem a little large.

I tried finding options that were somewhat close to the crane...maybe that's why crane is so expensive?? I assumed all these reputable companies would be close as far as quality but maybe not??

I'm building mine kind of same situation, planning on bolting on a 6V-71 in a year or two so building for more power shortly then the road.

I've looked at comp, isky, crane, and I'm thinking Lunati. Haxby recommended 3 of there blower cams I'm considering, you might want to look at them. They are 20110669, 20110670, & 20110671

Specs:
20110669: ADV: 293/303 @.5 -234/244 629/612 -114*LSA
20110670: ADV: 297/307 @.5 -238/248 640/629 -114*LSA
20110671: ADV: 301/311 @.5 -242/252 640/629 -114*LSA

I'm looking a # 20110669 with a steel billet core and a ever-wear gear, they consider the steel billet core & upgraded gear a "Custom grind" and it's $468

Assuming you have a MK IV (1965-1996); as you seem a bit concerned about price; you can have the cam below for $100 shipped. If you need the roller lifters, they would be $150.

https://www.offshoreonly.com/forums/...ams-290hr.html
11-450-8 - Magnum? Retro-Fit Hydraulic Roller Camshafts

Video - not my engine, but the same cam in a 496 on the dyno;