400 sbc street combo - Page 4 - Chevelle Tech
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post #46 of 72 (permalink) Old Oct 17th, 19, 7:14 PM
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Ron
 
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Re: 400 sbc street combo

Quote:
Originally Posted by 92Camaro View Post
I case you missed this build I'm gonna post it again.

I would like to add this build to this thread that used a Vortec truck head.

GM stock 400 2 bolt block bored .030 flat top about 11.2 compression, gassed nitride cast 400 crank, 5.7 p.m. rods with ARP std bolts. Cast iron truck Vortec heads w/ 1.94 in x 1.5 ex, ported, Edelbrock SV ported. Elgin Mechanical Cam (PN 1090) small solid lifter cam .530 in x .550 ex (60"s technology according to Mike Jones Cams). Holley 750 d.p. w/ 1 x 3/4 headers with 3" exhaust. This motor was built to handle a 200 h.p. of Nos. It's in the car but we never hit it. This engine is in a 72 Chevelle, Turbo 400 with a 10" unknown converter and a 4.30 gear. We drove the $hit out of this car. Drove it like we $tole it! With No Tuning, it ran 11.50's at 117 m.p.h. carrying the front tires 10 to 15 ft off the line. With more head work (larger valves) and better valve spring (double). I'm thinking this car will go low 11:00's to 10:80. and still rum pump gas 93 - 94 octane.

92Camaro
Nice! What does the converter flash too? 4.30 gears dont play

69 Camaro
491/AFR 315/Straub hyd roller/pump 91
TH400/GV OD/9" 3.50's/ 255/60/15 DR

10.86 at 124.8
3670 with driver
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post #47 of 72 (permalink) Old Oct 17th, 19, 9:33 PM
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Originally Posted by BillK View Post
Quote:
Originally Posted by Dragginwagon467 View Post
2v relief flat tops
6.0” I-beam rods (good cam clearance)

What brand rods and do they have good cam clearance with a standard base circle cam ? Just curious.
My rods were Lunati Street Race rods, full float. No longer available but they look similar to the Scat I-beams.

They cleared my 292H Cam by about 0.060” initially but I touched the top edge for just a bit more clearance. Cylinders 1 & 6 are always the closest.

Proving every day hindsight is 20/20.
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post #48 of 72 (permalink) Old Oct 17th, 19, 9:35 PM
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Re: 400 sbc street combo

Quote:
Originally Posted by 92Camaro View Post
I case you missed this build I'm gonna post it again.

I would like to add this build to this thread that used a Vortec truck head.

GM stock 400 2 bolt block bored .030 flat top about 11.2 compression, gassed nitride cast 400 crank, 5.7 p.m. rods with ARP std bolts. Cast iron truck Vortec heads w/ 1.94 in x 1.5 ex, ported, Edelbrock SV ported. Elgin Mechanical Cam (PN 1090) small solid lifter cam .530 in x .550 ex (60"s technology according to Mike Jones Cams). Holley 750 d.p. w/ 1 x 3/4 headers with 3" exhaust. This motor was built to handle a 200 h.p. of Nos. It's in the car but we never hit it. This engine is in a 72 Chevelle, Turbo 400 with a 10" unknown converter and a 4.30 gear. We drove the $hit out of this car. Drove it like we $tole it! With No Tuning, it ran 11.50's at 117 m.p.h. carrying the front tires 10 to 15 ft off the line. With more head work (larger valves) and better valve spring (double). I'm thinking this car will go low 11:00's to 10:80. and still rum pump gas 93 - 94 octane.

92Camaro
My 406 with the same Elgin 1090 cam but I ran Sportsman II heads and a 300-25 Strip Dominator the car went 11 flat @119 and change.
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post #49 of 72 (permalink) Old Oct 17th, 19, 9:41 PM
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Originally Posted by nashville beth View Post
Quote:
Originally Posted by Aaron View Post
Guys, how would a 180 head work on a 400 to 406 sbc? I have a set of Brodix 180 IK on a 350 right now.
Those heads should work great.

Did you know Edelbrock uses 170 vortecs on their 440 hp gen 1 crate engines ?

Imagine the low end torque with those 170 E-tec heads.
E-Tec 170 heads are sneaky, low lift flow is amazing.

Proving every day hindsight is 20/20.
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post #50 of 72 (permalink) Old Oct 17th, 19, 9:58 PM
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Originally Posted by Aaron View Post
Guys, how would a 180 head work on a 400 to 406 sbc? I have a set of Brodix 180 IK on a 350 right now.
If you already have them, why not rock ‘em?

Small runner, run a bigger cam. Big runner, run a smaller cam. It’s all about matching available airflow to the rpm where you want the peak power.

Given the same cam, a 200cc runner would soften the bottom slightly but boost the upper rpm.

Proving every day hindsight is 20/20.
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post #51 of 72 (permalink) Old Oct 17th, 19, 10:05 PM
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Quote:
Originally Posted by 92Camaro View Post
I case you missed this build I'm gonna post it again.

I would like to add this build to this thread that used a Vortec truck head.

GM stock 400 2 bolt block bored .030 flat top about 11.2 compression, gassed nitride cast 400 crank, 5.7 p.m. rods with ARP std bolts. Cast iron truck Vortec heads w/ 1.94 in x 1.5 ex, ported, Edelbrock SV ported. Elgin Mechanical Cam (PN 1090) small solid lifter cam .530 in x .550 ex (60"s technology according to Mike Jones Cams). Holley 750 d.p. w/ 1 x 3/4 headers with 3" exhaust. This motor was built to handle a 200 h.p. of Nos. It's in the car but we never hit it. This engine is in a 72 Chevelle, Turbo 400 with a 10" unknown converter and a 4.30 gear. We drove the $hit out of this car. Drove it like we $tole it! With No Tuning, it ran 11.50's at 117 m.p.h. carrying the front tires 10 to 15 ft off the line. With more head work (larger valves) and better valve spring (double). I'm thinking this car will go low 11:00's to 10:80. and still rum pump gas 93 - 94 octane.

92Camaro <img src="https://www.chevelles.com/forums/images/smilies/beers.gif" border="0" alt="" title="Beers" class="inlineimg" />
That’s a very impressive combination, what’s the weight?

Proving every day hindsight is 20/20.
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post #52 of 72 (permalink) Old Oct 17th, 19, 11:47 PM Thread Starter
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Re: 400 sbc street combo

Quote:
Originally Posted by Dragginwagon467 View Post
If you already have them, why not rock Ďem?

Small runner, run a bigger cam. Big runner, run a smaller cam. Itís all about matching available airflow to the rpm where you want the peak power.

Given the same cam, a 200cc runner would soften the bottom slightly but boost the upper rpm.
Im thinking on it...its on down the road for sure.

I have the 180's on a 430 horse 350...they have a 2.02 valve in there.

67 chevelle malibu / SS/ custom

Currently undergoing a metal work to remove all rust, if I ever get there.

Cant decide on prostreet or cruiser with a 4 speed.
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post #53 of 72 (permalink) Old Oct 18th, 19, 10:51 AM Thread Starter
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Re: 400 sbc street combo

Anyone have cam recommends for a 400 or 406 sbc running 10.5 to 11 to 1 compression....pump gas motors only.

67 chevelle malibu / SS/ custom

Currently undergoing a metal work to remove all rust, if I ever get there.

Cant decide on prostreet or cruiser with a 4 speed.
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post #54 of 72 (permalink) Old Oct 18th, 19, 1:33 PM
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Chris
 
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262/269 @ .050 .628” lift on 110 SR Drove it all the time on shell super and on the track.
Didn’t make much vacuum but sure was fun to drive! Boil the tires at will up to 45+ mph.

73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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post #55 of 72 (permalink) Old Oct 18th, 19, 1:43 PM Thread Starter
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Re: 400 sbc street combo

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Originally Posted by WHT/73 View Post
262/269 @ .050 .628Ē lift on 110 SR Drove it all the time on shell super and on the track.
Didnít make much vacuum but sure was fun to drive! Boil the tires at will up to 45+ mph.
Chris, not sure I want to put that much cam in it....but sounds like a blast!

67 chevelle malibu / SS/ custom

Currently undergoing a metal work to remove all rust, if I ever get there.

Cant decide on prostreet or cruiser with a 4 speed.
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post #56 of 72 (permalink) Old Oct 18th, 19, 1:54 PM
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Beth
 
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Re: 400 sbc street combo

Quote:
Originally Posted by Aaron View Post
Anyone want to share a good street combo in a 400 to 406 sbc? Prefer to shift at 5800 to 6000. Torquey combo.
Quote:
Originally Posted by Aaron View Post
Anyone have cam recommends for a 400 or 406 sbc running 10.5 to 11 to 1 compression....pump gas motors only.
I wouldn't go above 230 intake duration, especially if you ever put ac on it.

67 Chevelle convertible, 138 vin, original 4 speed, bucket seats, Marina Blue with black interior
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post #57 of 72 (permalink) Old Oct 18th, 19, 3:50 PM
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Here you go .. mustang dyno said 500hp 500 tq . 406 combo. Ended up 395 at wheels . Cam is hyd roller 230-234. https://m.youtube.com/watch?v=Zi5uyj3dCis
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post #58 of 72 (permalink) Old Oct 18th, 19, 3:51 PM
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Shane
 
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Here is one with load on the dyno . Pull starts at 3min mark . Was having rpm signal probs . https://m.youtube.com/watch?v=PFKd4-Vo_ts
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post #59 of 72 (permalink) Old Oct 19th, 19, 9:25 AM
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Steve
 
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Re: 400 sbc street combo

406 ci
10.5:1 compression
AFR195 Competition CNC ports
Vic Jr port matched
Lunati Voodoo ; Advertised Duration (Int/Exh): 294/302; Duration @ .050 (Int/Exh): 243/251; Gross Valve Lift (Int/Exh): .560/.565; LSA/ICL: 110/106; Valve Lash (Int/Exh): Hyd/Hyd; RPM Range: 2800-6400
1.6 Roller Rockers
Holley HP 750 carb
1 3/4" headers
This engine dyno'd at 540hp @6100 rpm and 525 tq. Very streetable with a stick. About eight years ago I swapped on a tunnel ram and two 1405 eddy's which gave it better driveability and while I did not dyno it with the TR it definitely increase power and tq.

65 Beaumont Sport Delux,406,AFR 195 Competition Eliminators, Edelbrock Tunnel Ram, Voodoo 60113 Hyd Roller,
540 hp,525 Tq, Faceplated TKO 600.

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post #60 of 72 (permalink) Old Oct 19th, 19, 2:50 PM Thread Starter
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Re: 400 sbc street combo

How will a 280/288 and 226/234 for .530/.530 lift on a 108 lsa and a set of Brodix 180's IK's react in a 400 sbc?

Looking for a 500/500 combo.

Cam to small for the build?

67 chevelle malibu / SS/ custom

Currently undergoing a metal work to remove all rust, if I ever get there.

Cant decide on prostreet or cruiser with a 4 speed.
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