STOCK

[@msh6865]

Nick, thanks for continuing to thrash on BBC's. It seems every video being posted now is about the LS platform, which is nice but, IMO nothing can match a big block with how easily they make hp/torque. This is a 87 octane pump gas motor making 454/538!!!

[@dzperformance7360]

Thanks for the support you guys that give me positive feedback makes me excited to doing more testing

[@RickHaile]

Finally a video testing an engine that an average Joe can afford!!! In my opinion 781s are the best Oem open chamber large oval port heads made! I'm currently helping a fellow build a 396 for his 71 Chevelle, and using 781s. We're using a Comp Cams 280 Magnum hydraulic flat tappet camshaft. It has .130 dome pistons and will make good weekend car. Keep the videos coming on these mild street motors!

[@dzperformance7360]

Thanks I'm glad you liked the video

[@BigFun4Life]

I always look forward to your videos,always full of good information..That’s a great mule motor..

[@dzperformance7360]

Thanks for watching and Charming in with cool comments

[@lollipop84858]

What is a mule motor..? Serious question, I don't know..

[@BigFun4Life]

@@lollipop84858 just a solid motor built for testing..Rather if its heads,intakes or cams…

[@489special9]

Very impressive torque numbers for such low compression and stock valve sizes! That cam profile is very close to the LS6 cam, I ran the roller version in my 468. It was great for the street!

[@gordongrimes2797]

thanks Nick I always stop on your videos short to the point full of great information.thanks piece out.

[@dzperformance7360]

Thanks for the support I really appreciate

[@hankclingingsmith8707]

The common man I think relates to your videos. We don't have ton of cash

[@dzperformance7360]

Evan in times when my business has been great and the cash is Flowing I don't want to dump a huge amount of money in a motor when I don't have to I want some left over for other projects

[@dzperformance7360]

Thanks for watching thanks for the support

[@dzperformance7360]

Something I want to do in the near future is to lay out the numbers next to one of the GM HO 454, to see how does it compare with the rectangle Port heads , smaller cam Factory

[@MikeFL2TX]

I ended up picking up a set of ported 781’s already dressed with 2.25/1.88 11/32 valves. Once they are cleaned, I’ll get them flowed and see what we can do to gain any. They’ve been milled/angle milled too, but we’ll work around that once o figure how much has been removed lol.

[@mre1984]

Keep the videos coming Nick

[@impalaSS65]

Thank you. That was quite interesting. Like you said, no one ever put std 049/781 on the dyno as far as I know either.

[@danielchitwood5485]

Sir I am in desperate need of your help. So sorry to bother you. You helped me figure out what was wrong with my 461 mark 4 bbc 781 heads and told me the lunati retro fit hydraulic roller lifters were my problem and you were right. 1 of them is a little springy while the others are not. Problem is I dumped all my money in this build and you can't buy that lifter right now. (Come in set of 2) any who I didn't know if you had any of those lifters laying around I could buy off you. I know you said you used to use them. I live in springfield missouri and can pay you to mail. Any who if not no big deal and sorry for bothering you otherwise. I am desperate to hear my baby rumble again as I've only drove ot twice. Same engine specs you build almost exact. Anywho love your videos thanks

[@dzperformance7360]

I'd be scared to sell you any of my used lifters for fear they'd go bad on you quickly

[@richardsmith-qy6vl]

Love your videos

[@dzperformance7360]

I'm serious you guys that give me positive feedback keep me doing this thank you so much

[@Hogiewan1]

Interesting to see, thanks Nick! I’ve always been a small block guy but have gotten intrigued by the big blocks. I always figured the swap would mess up suspension, troubles with exhaust; cooling, etc in an early 70s Camaro. Like to hear your thoughts

[@dzperformance7360]

@@Hogiewan1 the tire burning torque that you get with Big Blocks is well worth it

[@BradyMurdock]

Would love to see a q jet low rise compared to this manifold in a video with this cam or a ho cam

[@brentonk461ismylostaccount]

Only need do a 3 angle valve job for my 10 second quarter mile standard stroke mk-iv 454. Unported, Unmilled, standard size valve #781 heads.

[@dzperformance7360]

thats bad ass !!!

[@hankclingingsmith8707]

That About all they do until ported with bigger valves. I had 20 degrees more duration and did not do much better with stock valves

[@antilaw9911]

Rather have bowl ported peanuts. Waaaaaaaaay underrated!

[@Scubasteve22]

Thx again nick! Quick question. I am running a 1037 marine head gasket on my 78 454 build. I drilled the bottom three holes to match gasket for cooling. Do i need to make some kind of hole at the front of the block as well, as there is the square hole in the gasket but nothing in the block? Thanks

[@dzperformance7360]

No not in my opinion I think you did the right thing

[@musclebone7875]

No! Run it the way that you have it

[@Scubasteve22]

@@musclebone7875 thanks

[@Scubasteve22]

@@dzperformance7360 thanks Nick

[@musclebone7875]

@@Scubasteve22 you're welcome! I just replaced my head gaskets on my 496 big block about a year ago.👍

[@haroldcaldwell2225]

What did you have your timing set at both initial and total all in i have a 396 with those exact heads in a 72 nova

[@dzperformance7360]

I never checked the initial timing total timing I set at 38 degrees on all the Big Blocks and just leave it the same on every test, it would make a little it may make more power messing with it one degree plus or minus but I never change it

[@donwalsh7521]

That's good power on a budget that you can run crap gas in. Your channel kicks ass, and was wondering where your out of and if accept engine builds from your viewer's ?

[@dzperformance7360]

Central Missouri,, I've got small block Chevy and big block Chevy for sale that are in stock I'll help you pick your heads,cam, and intake for your combination and I dyno test it and deliver

[@dzperformance7360]

Thanks for supporting the channel you guys that chime in with positive comments keep me going thank you!!!

[@donwalsh7521]

I'm in AZ bit far for me but have a 496 big block chevy with skip white heads and edelbrock street tunnel ram, mark IV block w/splayed mains though the though the center three already o-ringed. The cam is a melling hydraulic roller 242 248 @50 112 lobe sep, 560 580 lift respectively hoping for around 10.5 compression as i live at 4000 feet elevation do not yet have pistons and need to have the block fixed because the front and rear mains are 2 bolts that walk. Or possibly have them doweled? Is this something you mite be interested in after the 1st of the year sometime?

[@dakotatelles3483]

have u ever use the 6th gen vortec heads

[@dzperformance7360]

no

[@williamsimpson8378]

​@@dzperformance7360 I'd like to see you run a set of L29 heads with the ZZ502 cam. I just finished a build with a ported set of the L29 heads, Manley valves, 9.3:1cr, and the same ZZ cam. Unfortunately, don't have an engine dyno, but look forward to running it on the chassis dyno. Keep up the good work!

[@dakotatelles3483]

@@dzperformance7360 what do u think of the bbc vortec 6th gen heads

[@dzperformance7360]

Thanks for the kind comments ​@@williamsimpson8378

[@dzperformance7360]

I have no experience with the vortec heads for big block

[@timosracecars]

8 to 1?? May I suggest a little boost 😏

[@AlexJonesWasRight1776]

@@timosracecars noo