How can i make 700 horse from a 410 stroker

[bigfoot]

Here's your 700 horse

[SOLD] - 422 w5 340 engine and accesories

Putting my 422 small block 340 up for sale see if any interest as a complete deal. Bought car with this engine in it and want to go gen 3 hemi 340 block with scat rotating assembly. 12-1 compression W5 heads,crane 1.6 rockers,comp solid roller touch over.700 lift. Have cam card Milidon pan...

www.forabodiesonly.com

That would do the job!

 

[pittsburghracer]

That would do the job!

Why because it says it’s 700 horsepower. Hmmm my sons stock crank 360 ran 6.54 with 13 year old Edelbrock heads. It’s full weight too. I hope the nitrous wasn’t used on this 6.30 passes.

 

[pittsburghracer]

Not mine. Another Facebook find.

UP FOR SALE!!!

So my friend just decided to sell this 416 cubic inch, W-2 Batten aluminum head engine. Price is $9500 carb to pan. It was just freshened up. Engine specs are: 340 block .030 over (1972) • Eagle forged crank – 4340 340006123 • mains and rods are std/std. • Clevite MS540H Main Bearings • Clevite Engine Parts CB-481HN - Clevite H-Series Rod Bearings • Eagle H beam rods - 6.123" 4340 H-Beam, Chrysler Small Block, 7/16" Arp 8740 Bolts. • ATI Super Damper. • Ross pistons (Chrysler ‘A’ Block: 340 – Dome Top: 4.070 Bore – 4.000 Stroke – 4.20CC – #99788) • Total Seal Piston Rings CR7590 35 - Total Seal CR Classic Race Piston Rings • 13.1 comp with .060 Cometic head gasket • Batten w-2 aluminum cylinder heads, rectangular ports, ported by Shady Dell 2.125"/1.60" valves, flowed 320.9/I and 222.5/E @ .700 • ARP Head Studs. • Harland Sharp 1.5 ratio Roller Rockers with shafts and stands. • INDY 360-I4-3R (fits 360-1) Manifold modified for 4500, rectangular ports, port matched to heads. • Lunati Drag Race Solid Roller Cam - Chrysler [hidden information]/310 #40200914 ( Advertised Duration (Int/Exh): 302/310; Duration @ .050 (Int/Exh): 273/281; Gross Valve Lift (Int/Exh): .640/.640; LSA/ICL: 106/100) • Comp Cams Endure-X Solid Roller Lifters for Chrysler V8 273-360, .904 (828-16) • Smith Brothers 3/8” push rods. • Stef's extra deep Oil Pan. • Melling M72HV Oil Pump

1050 Quick Fuels Dominator.

Engine is located in Bowie, MD See less

 

[bigfoot]

Why because it says it’s 700 horsepower. Hmmm my sons stock crank 360 ran 6.54 with 13 year old Edelbrock heads. It’s full weight too. I hope the nitrous wasn’t used on this 6.30 passes.

No Looking at the specs on the engine it should make close to 700. Your Edelbrock and speedmaster stuff runs great, makes great power but the OP is asking for more hp than those heads are capable of.

 

[pittsburghracer]

No Looking at the specs on the engine it should make close to 700. Your Edelbrock and speedmaster stuff runs great, makes great power but the OP is asking for more hp than those heads are capable of.

He’s down to 650 horsepower now and I think that’s doable. Remember my heads are over 10 years old and an old open chamber set of heads. Not one fancy part in my engine and my next set of heads will be much better. At .650 lift that has room to grow too. Over 600 horsepower on a budget is a cakewalk with a small block in todays world with 30 year old technology. Just like 750-800 horsepower with a big block is. Our factory blocks if used are our limits. Like we said earlier W8 or W9 heads mildly done up but his target easily.

 

[bigfoot]

He’s Dow to 650 now and I think that’s doable. Remember my heads are over 10 years old and an old open chamber set of heads. Not one fancy part in my engine and my next set of heads will be much better. At .650 lift that has room to grow too. Over 600 horsepower on a budget is a cakewalk with a small block in todays world with 30 year old technology. Just like 750-800 horsepower with a big block is. Our factory blocks if used are our limits.

Are you saying you think you could get 650 out of an edelbrock or speedmaster? I dont want to imply its impossible I would just have to see it to believe it. The port cross section is pretty small with the pushrod still in the port.

 

[rumblefish360]

The potential of that horsepower is there, however, most people don’t wanna go there. Extreme compression, huge cans, massive, carburetors, and headers. After that, people would want to drive it on the street just so they could be king of the street or talk a good game of what they have whether it’s actually not. No it wouldn’t want to drive such a piece on the street.

 

[bigfoot]

The potential of that horsepower is there, however, most people don’t wanna go there. Extreme compression, huge cans, massive, carburetors, and headers. After that, people would want to drive it on the street just so they could be king of the street or talk a good game of what they have whether it’s actually not. No it wouldn’t want to drive such a piece on the street.

Or why not just use a little better head? 260 - 265 intake solid roller, 11:1 compression with the properly sized port, a good single plane intake and 1 3/4 or bigger headers at 400 + inches is very streetable, on pump gas and should be bumping up against 650hp if done right.

 

[pittsburghracer]

Are you saying you think you could get 650 out of an edelbrock or speedmaster? I dont want to imply its impossible I would just have to see it to believe it. The port cross section is pretty small with the pushrod still in the port.

I don’t think, I know. Horsepower in my case is measured by ET. My Indy headed 442 ran 5.98 in the 1/8 and 9.38@138 mph in the 1/4 with an 850 carb and tired springs running out of guts before 1000 feet (2880 pounds). My Edelbrock headed 408 also ran 5.98 with no 1/4 mile times but it is still pulling up top way harder than my old engine as it has a roller cam (same lift) and a 1000 cfm carb (2850). Remember my engine is a bracket combo so I could show more horsepower with a 10
inch radial tire instead of 14-32 slick. I could run a coastal track like many to get my fast number. I hear a belt drive would be worth a few horsepower as would a vacuum pump. 5/16 valves like many run, possibly a dominator carb, special ring pack, lightweight parts, etc. a radial is worth .20 as I’ve witnessed that many times. I guarantee you 650 horsepower is available if you want to spend the money.

 

[bigfoot]

I don’t think, I know. Horsepower in my case is measured by ET. My Indy headed 442 ran 5.98 in the 1/8 and 9.38@138 mph in the 1/4 with an 850 carb and tired springs running out of guts before 1000 feet (2880 pounds). My Edelbrock headed 408 also ran 5.98 with no 1/4 mile times but it is still pulling up top way harder than my old engine as it has a roller cam (same lift) and a 1000 cfm carb (2850). Remember my engine is a bracket combo so I could show more horsepower with a 19 inch radial tire instead of 14-32 slick. I could run a coastal track like many to get my fast number. I hear a belt drive would be worth a few horsepower and would a vacuum pump. 5/16 valves like many run, possibly a dominator carb, special ring pack, lightweight parts, etc. a radial is worth .20 as I’ve witnessed that many times. I guarantee you 650 horsepower is available if you want to spend the money.

You are in a very, very small group of people to achieve that out a factory type head if thats the case. What would a set of your heads go for?

 

[pittsburghracer]

You are in a very, very small group of people to achieve that out a factory type head if thats the case. What would a set of your heads go for?

I wouldn’t sell a set right now. The set on my car that I did for a friend 12 years ago maxed out at 318 cfm with the intake on. It needed the intake to control (slow down) the air. In the last year I’ve found and fixed that problem and these heads that I’m slowly doing now flow right at 330. Every bit of that pickup is 3/4-1 inch from the valve.

 

[bigfoot]

I wouldn’t sell a set right now. The set on my car that I did for a friend 12 years ago maxed out at 318 cfm with the intake on. It needed the intake to control (slow down) the air. In the last year I’ve found and fixed that problem and these heads that I’m slowly doing now flow right at 330. Every bit of that pickup is 3/4-1 inch from the valve.

There lies te problem, for the rest of us the heads are unavailible. I have neither a flowbench nor time to figure out those ports. A w2 or 5 takes much less porting to achieve those levels and its obvious where to remove material. Again, not knocking your work, its remarkable.

 

[pittsburghracer]

There lies te problem, for the rest of us the heads are unavailible. I have neither a flowbench nor time to figure out those ports. A w2 or 5 takes much less porting to achieve those levels and its obvious where to remove material. Again, not knocking your work, its remarkable.

The BPE heads are cnc’d heads and are available. I think at least three of our members will be running them this year.

 

[273]

Or why not just use a little better head? 260 - 265 intake solid roller, 11:1 compression with the properly sized port, a good single plane intake and 1 3/4 or bigger headers at 400 + inches is very streetable, on pump gas and should be bumping up against 650hp if done right.

Also, not that it necessarily makes it unstreetable but were probably in the low to mid 7000's rpm to make 650 hp with 408-416 cid sbm. For a lot of people that's outside of a streetable rpm making it a street legal race car, 450-550 seems to be the sweet spot for a 408-416 for most.

 

[pittsburghracer]

Also, not that it necessarily makes it unstreetable but were probably in the low to mid 7000's rpm to make 650 hp with 408-416 cid sbm. For a lot of people that's outside of a streetable rpm making it a street legal race car. 450-550 seems to be the sweet spot for a 408-416 to most.

What’s a street engine have to do about a 650-700 horsepower pulling truck engine. Come on now. Lol

 

[273]

What’s a street engine have to do about a 650-700 horsepower pulling truck engine. Come on now. Lol

Bigfoot brought up streetability, I was just responding to his comment.

 

[bigfoot]

The BPE heads are cnc’d heads and are available. I think at least three of our members will be running them this year.

I think these are pretty hard to get and 2200 a piece? Not certain as I cant find any info on them.

 

[bigfoot]

Also, not that it necessarily makes it unstreetable but were probably in the low to mid 7000's rpm to make 650 hp with 408-416 cid sbm. For a lot of people that's outside of a streetable rpm making it a street legal race car, 450-550 seems to be the sweet spot for a 408-416 for most.

Here is a dyno sheet from an old shady dell build off of moparts. A 434 inch pump gas W5. 713 hp at 6600 rpm. Not a taxi engine but streetable for a hot rod.

 

[273]

Here is a dyno sheet from an old shady dell build off of moparts. A 434 inch pump gas W5. 713 hp at 6600 rpm. Not a taxi engine but streetable for a hot rod.

View attachment 1716088728

This engine makes 1.42 lbs-ft per cid for most that's above their abilities.
If the torque per cid was kept the same and torque % at peak hp a 410 would have made 713 hp 6980 rpm. Torque per cid gonna greatly affect the powerband higher it is the less rpm needed. Most 408-416 are making around 1.2-1.3 tq per cid 490-540 ibs-ft, a 540 lbs-ft tq peak making 90% at peak hp = peak 650 hp @ 7025 rpm.

 

[justinp61]

Don't get hung up on flow numbers, my Indy heads only flowed 308 or so. On my 434 they've been 135 in the 1/4 on pump 93 in a 3292 pound, leaf spring street/strip car.

 

[bigfoot]

This engine makes 1.42 lbs-ft per cid for most that's above their abilities.
If the torque per cid was kept the same and torque % at peak hp a 410 would have made 713 hp 6980 rpm. Torque per cid gonna greatly affect the powerband higher it is the less rpm needed. Most 408-416 are making around 1.2-1.3 tq per cid 490-540 ibs-ft, a 540 lbs-ft tq peak making 90% at peak hp = peak 650 hp @ 7025 rpm.

That makes sense, though its not for everyone, many of us are ok with spinning 7k.

 

[pittsburghracer]

This engine makes 1.42 lbs-ft per cid for most that's above their abilities.
If the torque per cid was kept the same and torque % at peak hp a 410 would have made 713 hp 6980 rpm. Torque per cid gonna greatly affect the powerband higher it is the less rpm needed. Most 408-416 are making around 1.2-1.3 tq per cid 490-540 ibs-ft, a 540 lbs-ft tq peak making 90% at peak hp = peak 650 hp @ 7025 rpm.

You do know most dyno numbers are never accounted for in track times. Dyno headers, dyno carbs, dyno factoring.

 

[273]

You do know most dyno numbers are never accounted for in track times. Dyno headers, dyno carbs, dyno factoring.

Never said they did, just pointing there's a powerband rpm difference for similar hp/cid from a pro builds like 1.4+ lbs-ft per cid than an average good build 1.2-1.3 tq:cid.

 

[pittsburghracer]

Never said they did, just pointing there's a powerband rpm difference for similar hp/cid from a pro builds like 1.4+ lbs-ft per cid than an average good build 1.2-1.3 tq:cid.

I sure would like to know what you race and what it runs. You have the dyno talk and numbers factoring down to an art. But are you applying all that technology on the race track. Tell us YOUR track history please.

 

[273]

I sure would like to know what you race and what it runs. You have the dyno talk and numbers factoring down to an art. But are you applying all that technology on the race track. Tell us YOUR track history please.

Never have raced, got a car with a 380 hp crate engine and I plan on downsizing the cam