New 408 E85 build using the Trick Flow Power Port 190 heads

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dstemmerman

dstemmerman

1972 Dart Swinger Denver
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Almost there. 408 Ohio Crankshaft forged internals, H-rods, JE pistons 12.2:1, custom solid FT 248/255 106lsa, Holley XP 950 running E85 with these beautiful heads. Should be an interesting street cruiser.

408.jpg
408.jpg
 
You never know. I have pepperoni fingers and think I've hit the like button or agree and end up with the big red X on accident. I always try and make sure I got it right, but I miss it sometimes.

Probably just butter fingers
 
Tiny cam. Nice deal, but you could run lots more camshaft with that stroke and compression easily and cruise to your hearts content.
Cant wait to hear some results. Good luck
 
B3422w5 said:
Tiny cam. Nice deal, but you could run lots more camshaft with that stroke and compression easily and cruise to your hearts content.
Cant wait to hear some results. Good luck
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Here is the cam card. I thought it was pretty stout for a street car.

Cam2.jpg
 
dstemmerman said:
Here is the cam card. I thought it was pretty stout for a street car.

View attachment 1715335382
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I have a stock stroke 360 thats barely over 10 to 1
Cam is a hair big, but its 260/264 on a 106. Its 565 lift. Drive it everywhere. Runs 11.20’s on pump gas at 3300 pounds
You have lots of compression and a 4 inch stroke crank. 4 inch cranks eat up a ton of cam duration. Your motor “ could” make 600 ponies and be a streeter. But not with that camshaft
That cam calls for a 115/ 325 spring. Thats for a really mild lobe. As an example mine needed 135-140. No requirements for break-in. Its mild
Not trying to dog ya, just leaving lots of power on the table with the compression and nice heads.
It will run fine the way it is. Enjoy.
 
B3422w5 said:
I have a stock stroke 360 that barely over 10 to 1
Cam is a hair big, but its 260/264 on a 106. Its 565 lift. Drive it everywhere
You have lots of compression and a 4 inch stroke crank. 4 inch cranks eat up a ton of cam duration.
That cam calls for a 115/ 325 spring. Thats for a really mild lobe. As an example mine needed 135-140.
Not trying to dog ya, just leaving lots of power on the table with the compression and nice heads.
It will run fine the way it is. Enjoy.
Click to expand...
I assume your duration numbers are at .050? My total duration is 308/308. I appreciate the feedback.
 
B3422w5 said:
Yes@ 50. Look at the dinky springs they tecommend for that cam. 115 is super light. Like a stock eddie head valve spring
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I know you are just giving feedback, but the cam was ground by Scott Main who has won engine masters a couple times and has 6 NHRA national records. I trust him. He knew all my spring data before he made the cam, so not sure where those numbers came from honestly. The springs are rated up to .650 lift, which I will be under. Wish me luck and hope the cam is enough.
 
dstemmerman said:
I know you are just giving feedback, but the cam was ground by Scott Main who has won engine masters a couple times and has 6 NHRA national records. I trust him. He knew all my spring data before he made the cam, so not sure where those numbers came from honestly. The springs are rated up to .650 lift, which I will be under. Wish me luck and hope the cam is enough.
Click to expand...

Bought a motor off an engine masters entrant guy just a few years ago. He has been in a number of them too. Well known custom crankshaft guy
Cam in the motor was an agressive solid, 248/248, around 620 lift.
Its was a 318 with iron heads that made 477 ponies.
Google “ LA confidential Mopar” it will pull up the build.
Yours will run fine, i have no doubt. I have just ran enough stroker motors over the last 20 something years at the track( and on the road) to know a 4 inch crank small block chrysler likes lots of duration. I have a 418 shortblock( 40over 340 block)that is zero deck flattops like i assume yours must be waiting in the wings for trickflows. Was supposed to have it ready this spring but late summer surgery is cutting my season short, so that motor will have to wait till next season. Just got my car out today, 90 days till surgery.
Should be 12.6/7 compression, probably run something approaching 650 lift( roller) and 266/272 ish duration
 
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408.jpg
Nice build. When you get it all dialed in take it to the track and put down some impressive numbers. Ah yes....impressive numbers with a tiny cam....ooops, sorry, so IMO, there's more than one way to cam a stroker. Pretty much agreed upon that you can go/could have gone bigger, but there's nothing wrong with being conservative. It'll "HONK" regardless.
 
12many said:
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408.jpg
Nice build. When you get it all dialed in take it to the track and put down some impressive numbers. Ah yes....impressive numbers with a tiny cam....ooops, sorry, so IMO, there's more than one way to cam a stroker. Pretty much agreed upon that you can go/could have gone bigger, but there's nothing wrong with being conservative. It'll "HONK" regardless.
Click to expand...

Plenty of ways indeed to cam a stroker. My point is he with zero doubt left a good bit of power on the table with that small of cam. Will it run fine, of course it will, never said it wouldn't.
 
B3422w5 said:
Plenty of ways indeed to cam a stroker. My point is he with zero doubt left a good bit of power on the table with that small of cam. Will it run fine, of course it will, never said it wouldn't.
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Absolutely. You are right. I'm just a (very) tiny cam in a stroker guy myself (was being coy?witty? referencing how my setup runs) who knows I could've gone bigger beforehand but didn't for various reasons. Its all good:)
 
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the cam depends on where he want's his power band, not something to give maximum high end hp and no torque curve
I like engine master style torque curves we do not know trans or gears or anything else to give cam recommendations
OP are those fel pro's?
what's your quench and how far down are your piston tops at tdc?
you may need a mls gasket
post up your cranking comprssion when you get it installed
thanks
 
Wyrmrider said:
the cam depends on where he want's his power band, not something to give maximum high end hp and no torque curve
I like engine master style torque curves we do not know trans or gears or anything else to give cam recommendations
OP are those fel pro's?
what's your quench and how far down are your piston tops at tdc?
you may need a mls gasket
post up your cranking comprssion when you get it installed
thanks
Click to expand...
Trans is a standard 727 with a kit, Hughes 10" 3500 stall, gear is a 3.55, quench is .039 compressed, they are Fel-Pros (my builder said these were still good at 12.2:1), block was zero decked.
 
B3422w5 said:
I have a stock stroke 360 thats barely over 10 to 1
Cam is a hair big, but its 260/264 on a 106. Its 565 lift. Drive it everywhere. Runs 11.20’s on pump gas at 3300 pounds
You have lots of compression and a 4 inch stroke crank. 4 inch cranks eat up a ton of cam duration. Your motor “ could” make 600 ponies and be a streeter. But not with that camshaft
That cam calls for a 115/ 325 spring. Thats for a really mild lobe. As an example mine needed 135-140. No requirements for break-in. Its mild
Not trying to dog ya, just leaving lots of power on the table with the compression and nice heads.
It will run fine the way it is. Enjoy.
Click to expand...


I'm 255/255 at .050 on 105 LSA on 340 inches. I have that much at .050 so I can shift at 7k. If I was going to wind it up, I'd need more duration. That's on a 3.313 stroke and ported iron heads.

BTW, the seat timing on my cam is 281-281 so it's a fairly fast lobe.
 
cool, i like it! pretty sure that runs deep into the elevens. Should really be a nice street cruiser, keep us updated!

Michael
 
The cam Mike Jones spec'd for my 383 isn't that far off from those specs and this is for a 7200 rpm, 13.5, ported W2 headed, alky burner but I need torque off the corners at about 3500 - 4,000 rpms and Mike sez no dice on those big lift and duration numbers.

We normally do all the passing coming off the corners... the speed on those big half miles is just sizzle for the spectators.

That said I guess the OP has as big a cam as I'd want on the street if it's driven a lot.
 
Krooser said:
The cam Mike Jones spec'd for my 383 isn't that far off from those specs and this is for a 7200 rpm, 13.5, ported W2 headed, alky burner but I need torque off the corners at about 3500 - 4,000 rpms and Mike sez no dice on those big lift and duration numbers.

We normally do all the passing coming off the corners... the speed on those big half miles is just sizzle for the spectators.

That said I guess the OP has as big a cam as I'd want on the street if it's driven a lot.
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Thanks. The idea is to drive the crap out of it on the street. The idea was to bring torque on early with shift point around 6,500.
 
I notice the OP is in Denver, when I had my cam spec'd by Racer Brown (I'm in northern CO) Jim mentioned the lower air density kind of throws a wrench into the mix. That might be one reason the cam is a bit milder than would normally be considered for a 408" like that, it's more of a challenge keeping decent dynamic compression at ~5500 ft above sea level. It also hurts on the top end as well, engines tend to wind out a bit earlier than normal at altitude. It sucks lol.

My Duster runs awesome with its "new" engine but I can only imagine what a well-matched centrifugal blower with 6-10 lbs boost could do. I've already got head studs and Cometic head gaskets heh heh...
 
MopaR&D said:
I notice the OP is in Denver, when I had my cam spec'd by Racer Brown (I'm in northern CO) Jim mentioned the lower air density kind of throws a wrench into the mix. That might be one reason the cam is a bit milder than would normally be considered for a 408" like that, it's more of a challenge keeping decent dynamic compression at ~5500 ft above sea level. It also hurts on the top end as well, engines tend to wind out a bit earlier than normal at altitude. It sucks lol.

My Duster runs awesome with its "new" engine but I can only imagine what a well-matched centrifugal blower with 6-10 lbs boost could do. I've already got head studs and Cometic head gaskets heh heh...
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You are correct. I am just south of Denver at 6,000 ft. Bandimere is around 5,800+. The air here sucks for racing due to various oxygen and density variables. That is one reason my power curve may be lower and flatter than most.
 
dstemmerman said:
You are correct. I am just south of Denver at 6,000 ft. Bandimere is around 5,800+. The air here sucks for racing due to various oxygen and density variables. That is one reason my power curve may be lower and flatter than most.
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Gotcha, I used to live in Lakewood before moving up here, I was less than 15 minutes from Bandimere it was awesome. The mountain weather is all over the place in that area, Fort Collins is a bit milder as we're farther east from the mountains.

Buddy of mine who lives in Denver and has been around Mopars most of his life mentioned a lot of race cars that come from out-of-state to run at Bandimere tend to top out 1000 RPM lower (or more) than they do at other lower elevation tracks.
 
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The elevation is why your cam is smaller than most. You have 1/5 less air pressure or 4/5 the power compared to sea level.
 
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