Hey Nick , Great Videos like you always do. can't wait to hear more specs on this Rat Motor. What Scorpion Rocker Arm do you prefer I remember your test of weighing them and the amount of Rat motors you turn out I thought your opinion was very qualified.
I have three different shops that I work with but the main one the one that seen in this videos top secret they are not looking for new customers and don't want their name used
at least 1300 rpm between peaks, that's pretty good. it begs the question of what's the head and cam combo are. is it a fairly big cam with lower flowing heads, or is it a smaller cam with really good heads. I'm guessing a 236° cam, maybe a 240° at .050 cam. how close am I?
You’re obviously a big block Chevy expert… I’m putting together a .030 Mark IV 454 that’s been decked, stock replacement pistons, 063 casting heads with 2.19/1.88 valves, around 9.5 to 1 compression, an air gap intake, an Erson 230/238 110lsa .630ish lift roller cam, along with headers. What kind of horse torques do you think I’ll make?
Be careful .630 lift with stock style pistons,,Is a lot But if everything works , you should beat this motor buy 10 to 35 ?? Just guessing depends on how good your head porter is
@@dzperformance7360 thanks, I am concerned about the piston to valve clearance too. It’ll be going together in a week or two… I’d love to flow these heads for giggles but there aren’t any flow benches anywhere near me.
I've been doing this for a long time and still don't understand why some heads don't flow that well but make good power and some heads flow great and don't do anything,, I've never used the casting number that you got.But nineteen sixty nine oval port heads should work well,, In my experience. So what I'm saying is head flows not always the only. Factor ,, Velocity compression ratio cylinder head intake volume,, It's all the factor and you never know till you put it on the dino or take it to the proveing grounds
Hey Nick , Great Videos like you always do. can't wait to hear more specs on this Rat Motor.
What Scorpion Rocker Arm do you prefer I remember your test of weighing them and the amount of Rat motors you turn out I thought your opinion was very qualified.
Where do you get those motors dynoed?
I have three different shops that I work with but the main one the one that seen in this videos top secret they are not looking for new customers and don't want their name used
The shops I use are in Kansas Oklahoma and Missouri
Like your post's but could you give a bit of info like cam specs, compression and heads. Thanks
I'm gonna do a complete video on it this weekend,,
@@dzperformance7360 Thank you Sir
Looks like a great way to separate the body from the frame ! 😎
at least 1300 rpm between peaks, that's pretty good. it begs the question of what's the head and cam combo are. is it a fairly big cam with lower flowing heads, or is it a smaller cam with really good heads. I'm guessing a 236° cam, maybe a 240° at .050 cam. how close am I?
This was just a preview video for the owner of this motor,, I'll do a complete video this weekend
You’re obviously a big block Chevy expert… I’m putting together a .030 Mark IV 454 that’s been decked, stock replacement pistons, 063 casting heads with 2.19/1.88 valves, around 9.5 to 1 compression, an air gap intake, an Erson 230/238 110lsa .630ish lift roller cam, along with headers. What kind of horse torques do you think I’ll make?
Be careful .630 lift with stock style pistons,,Is a lot But if everything works , you should beat this motor buy 10 to 35 ?? Just guessing depends on how good your head porter is
@@dzperformance7360 thanks, I am concerned about the piston to valve clearance too. It’ll be going together in a week or two… I’d love to flow these heads for giggles but there aren’t any flow benches anywhere near me.
I've been doing this for a long time and still don't understand why some heads don't flow that well but make good power and some heads flow great and don't do anything,, I've never used the casting number that you got.But nineteen sixty nine oval port heads should work well,, In my experience. So what I'm saying is head flows not always the only.
Factor ,, Velocity compression ratio cylinder head intake volume,, It's all the factor and you never know till you put it on the dino or take it to the proveing grounds
This is why.
I'm so big on Drag racing and testing these parts,,
@@dzperformance7360 I sincerely appreciate the feedback!! I’ll let you know how it all goes.