I just picked up a gen 6 454 last week after watching lots of your videos. Can’t wait for the 500-600 hp videos! Thanks for the easy formulas here!

The late model BBC content is always my favorite. 👍🏻

I hope people will keep stuffing big blocks into their projects. I see so many LS based builds nowadays and they're cool. But, there's just something special about a big block. Owned and enjoyed them all my life.

Dude your just a proven method man with proven results. Driving my car to my house thanks rich lol. Dude your the goat

Thank you. I have a mark iv in my 78 single cab dually gets nine mpg if truck is empty or pulling a load. still stock and runs great for what it is. I figured it’s about time to modernize the motor and bring it out of the seventies.

Great series! love the big block content.

Love watching these videos!

Thank you Richard for the amazing contents

Love the videos on the 454 s . Thank you for the info

Awesome, bring it on richard!

Awesome. This will be a great series. Even though you'd think it's been done to death, can you do the same for small block Chevrolet gen I and gen II, with part numbers and parts / heads / etc. , available today. It's great to see power verified by the dyno. Thank you

I love these videos!

Ok all this is fine well and good however is this the right question

Just pulled the 6.0 L out of my 02 2500hd 4x4 4.10 and swapped in a gen 7 8.1 L , yeah the torque is awesome ! Pretty easy swap also

Love these videos! I have a Mark IV big block sleeping in an old RV in Texas. Soon I’m going to go pull it out, sprinkle lots of Richard Holdener knowledge on it (pistons, cam, heads, intake and headers) and stick in in my 68 Malibu wagon sleeper project. I’m standing by for the 500 and 600HP videos!

Dart makes a carb manifold for the 8.1, love to see that on the dyno once. Awesome video

I always appreciate all your efforts and the wealth of info, but your on screen specs for the XE268H cam are the small block specs not the big block specs.

I'd like to see what kind of HP a gen 6 454 would make with a crate gen 6 zz502 cam swap

Ohh you have my attention now

S.A.E. net ratings are a reality many, particularly old timers, can't or won't comprehend.

Here's the question, will Richard use the special cam in these upcoming test!

Nice to know the 6.0 ls can make about the same torque as the 454 stock. It can make a big difference how the head, intake, and cam can make a smaller engine make similar power haven’t looked at the stock peanut port power levels 🕺🕺🕺

Could you do a build on a 6.8 v10 triton Ford

Finally! Ls videos are so boring

I need a recipe for twin marine 454/496 400hp. I have mk4 blocks and stock mercruiser heads to start with. Motors currently have 900 hours and still running

👍💪

What would be a good a piston upgrade for a gen 6 454 with stock crank , rods and stock heads

Can’t wait for the next combos…How do you know when your oval port heads are the limit on a BB Chevy?

Now how do I get the widest power curv/ tork curv let's say above 350 and below 500 horse. Now that we have a real question talk to us balled y I know you have the answer your flower the Bloody knuckle!

400 and 500 can be done on the cheap if you plan smartly

Richard I’m rebuilding a 69 427, block from factory is not notched for valve clearance. Is it needed and will it really make a difference in power?

Question on the GEN 5 454 did you replace the factory non adjustable rocker arms with screw in studs and guide plates?

Why not test a cam or two in the 8.1? Comp has a nice one.

Where did you get the long tube headers for the gen 6 454? I can’t find anything

Just got a gen 6 that was a natural gas engine. Has gen 5 933 118 cc heads on it. Are those heads worth messing with?

I am working on my Gen VI project and have my eye on gm crate HT502. Do you know if the factory vortec intake will work on that engine? I know i will need a tune, but do you know if the factory computer and fuel sys work as well?

Quick question ... Need simple answer please .... I have a Gen 5 BBC... I'm putting a Howards 555 lift rattler cam in it ... Question is which one do I use .?.?. The MKIV cam or Gen 6 cam ???? Pleeeeeaaaassssseeeeee

How do you bypass the oil cooler on the Gen 6 454?

Are you changing to adjustable valve train on the Gen 5 and Gen 6

any header size testing for these bbc's

400? Pull a plug wire.

Have you ever done a head swap from different generations. Example a gen5 454 with mark4 heads? Good idea bad idea, whats the potential performance of such swap?

@Richard Holdener I have a BBC casting #12561357 non roller & head#12562932 what's the biggest cam kit??, I can go with without any problems!! Thanks Cam+lifters+springs are a must!!!!

Just slapping a crate motor gmpp cam in that throttle body 454 with the original springs should of got you 400 if you had 334 initially lol .that one was a ringer

i thought the better heads and 276 roller cam would have made more power than the xe268 and peanut ports

I know all this

Personally I blame squirrels

I've got A 598 big block Chevrolet. Ready to be put together I'll send it to you. Everything but the heads. 800-1000hp

330hp- 450tq normally, should not be hard to make 400hp.

400 hp bbc should be considered a failure.

If I was young and trying to learn about engines, this video would make me think bigblock Chevys suck. But since I've been building engines for 40yrs and many of them were bigblock Chevys, I know better. A 400hp bigblock Chevy is a waste of space. Properly built, not many engines can compete with the Rat. NHRA legal "Stock" LS-5s with the Q-jet and cast iron intake are making over 600hp these days, NHRA Superstock L-88 427s are over 900hp with a single 850 DP Holley and run mid 8s in the 1/4. It's almost like this is a anti bigblock Chevy video making the youngsters think the big Rat is junk and the LS is way superior. But go to any dragstrip on any weekend and you'll see plenty of big Chevys kicking everyone else's ass. I tried competing with them on the street back in the day with Pontiac and Olds engines, it just showed me how good those Rats really are. Those late model 454s already had their balls cut off. The old ones are the ones that really have the potential in stock form. But any 454 can be built into a monster real easy. Ole Steve Brule knows....

There's no such thing as a big block "chevy".