Torque Monster Small Block Chevy
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- Опубліковано 9 вер 2024
- Today we are running a small block chevy 400 on the dyno. This is a strong street engine that will be a lot of fun to cruise around in considering how much torque this engine makes.
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That is why I love the 400 SBC!
Torque curve is incredible!! Flat as a pancake and really carries Im impressed using the small head
Yrs back I wanted to do a ca legal 400 TPI build for my then 89 Vette .
I caught so much flack hearing "gee a 180 head is too small"..proof here it works.
Planned on a 213@050 HR on a 112, and heavily port afterarket TPI pieces myself
Was hoping for 350hp 500 lbs torque and truly pass smog.
I'd love to see a 400 build that focused on "off idle" torque and HP with a 5000 RPM red line. Basically a stock 400 blue print with a zero Deck, street pistons, heads, 9.0:1 compression (cheap gas) RV Cam, Q-Jet and iron exhaust manifolds.
I saw a Ford video (400M ) making 375 HP and 450+ lb ft of Torque idle to 4500 RPM. Tow a mountain, have enough power to pass and get better fuel mileage towing a camper.
That's just what i need in my Tahoe!
We can hook you up with one!
That's gonna make a great street engine.
Gotta love the 406
GOOD VIDEO MAN, I LOVE THOSE 400S ,JUST STROKED MINE TO 421 PUMP GAS MOTOR ALMOST READY FOR DYNO
Updates any details on build? Love the 421!! long lasting and big power
Sure would be interested in the cam specs and compression. The cam sounds fairly large for a street motor.
It's 10.25:1 on compression and the cam is a comp cams XR288HR-10 236/242 .520/.540 110lsa.
I like the valve covers 👍
That would be a great street engine for a 1st gen Camaro..
Killer torque !!!
Great graph, but your fuel turbine is out to lunch with those figures.
That torque is tabletop flat! Good job boys!
So what 400 you got there is that a 509 block or 511 block and what year is it sounds like something I want to do with my 400
What cam is that? If you dont mind me asking.
Building a 383 stroker with those heads. I'm looking to keep my torque as low in rpm as possible.
Its a comp cams 12-433-8 or XR288HR-10
Love the combo! I'm building a 406 with 180cc afr's. I'm leaning towards comp xe276hr cam for better vacuum and lower rpm. Any idea where that would put my torque/hp numbers in comparison to the xe288 cam you tested?
Hard to say on the exact numbers but I would guess around 460-470hp and 480-490 ft lbs and it will occur earlier in the rpm range.
Yes she is a sbc torque monster 👻
What intake is that running? I am also surprised at the power from those heads. Love the fact you made that much power using a 650cfm carb. So many bro science experts would says the carb is too small.
It's an edelbrock performer rpm air gap intake.
@@pageracingengines thats what I thought from the looks, just wanted to be sure. Its certainly a great intake as evidenced by this dyno pull.
@@pageracingengines FT or roller, hydraulic or? Dying to know rough specs. That is one killer frigging torque curve!!!
Flattest Ive seen on YT so far it reallycarries! THat is one tire smoking mill. Tall gears no od no problem
Good job bud
@@gordocarbo Its a hydraulic roller, comp cams 12-433-8 or XR288HR-10
@@pageracingengines Thanks...good size for a hot st car (400).
How much more power would have made with a single plane?
Very nice!!!
What type of compression ratio are you running with that cam? do you think a single plane would also work well with this combo?
It was 10.25:1 on the compression. A single plane would work well, it would just move the peak power number up in rpm but also lose a little torque down low.
@@pageracingengines Thanks for the reply. I have 400 sbc just put afr 210 heads, a similar cam in and about 11:1 CR. I put on a strip dominator but also have a rpm air gap on the shelf. have sniper efi, just got the combo fired up the other day so can't say much about how it feels. you guys got a lot of hp and torque out of these small heads!
@@mcrickyd32 Yea that should make some good power. I was surprised with how much power we got out of those small heads.
What cubic inch is this engine? Sounds great making the pulls very clean as it goes up in rpms
It's a 406, .030 over 400sbc.
@@pageracingengines Is that a Dart Block?
@@dogman_ no its a stock gm block.
Cam specs and compression would have been nice information to see?
It's 10.25:1 on compression and the cam is a comp cams XR288HR-10 236/242 .520/.540 110lsa.
@@pageracingengines, Thank You!
Would make a good motor for a tow rig
THAT'LL DO JUST FINE IN MY REGULAR CAB, SHORT BED, 1991 CHEVY s10!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MY DOOR WILL ALWAYS BE OPEN FOR THAT MOTOR.
Your truck would be a super sleeper with that engine. Dont even need OD it makes so much torque
What's the camshaft specs on this motor duration @50, lift and LSA?
It's a comp cams XR288HR-10 236/242 @.050, .520/.540 lift on 110lsa
@@pageracingengines Nice beefy camshaft.
@@pageracingengines perfect size for a st performance 406
My first ride in one I was 19...65 Camino M22 3.08...ported GM turbo heads dual plane and a flat tappet similar size
I was stunned at how that car pulled. In any gear I forgot all about my lil cammed up 327 after that haha.
back then the mentality is a 383 couldnt rev it was for trucks...boy were we in the dark!
Sikkk Made
Translate please?
Badd to the bone
Keeping it NA what can you do to reach 1000hp ?
It would take a lot of modifications to reach 1000hp NA. Basically start over completely with everything. Need a lot more airflow so bigger heads and intake, would need a much larger cam and more compression to match the heads.
@@pageracingengines 😈😈😈😈😈😈😈🤤🤤🤤🤤🤤🤤🤤🤤❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥 great answer most vlogs say it can’t be done ❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥
@@pageracingengines I’m assuming here the compression would come from the pistons ?
@@HighPowerOptionsTrades Yes a combination of the pistons and cylinder heads.
@@HighPowerOptionsTrades They are probably young and inexperienced.
Last 100 yrs engines have been making good power with boost.
They dont believe guys were making 6-700 na with small blocks in the 60s and 70s.
Theres a vid of "10 second TPI Iroc" here check it out. Insane build.
What good is your video without the specs? Just another engine on the dyno, dime a dozen.
afr 180 heads and comp cams xr288HR cam and 10.25:1 compression. he mentioned it above. pretty nice combo
Try reading he lists everything. lol