Home | Register | Login | Contact Us

 
Auto Math
Classifieds
Forum
Gallery
Games
Garage
Tech Articles
Utilites
 
FAQFAQ    SearchSearch    RegisterRegister    Log inLog in    Log in to check your private messagesLog in to check your private messages    Forum Subscriptions1/4 Mile Table 

new 406 aka "cornholio"
Goto page 1, 2, 3  Next
 
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Small Block Gen 1
View previous topic :: View next topic  

what will cornholio make????
500-550
0%
 0%  [ 0 ]
551-600
70%
 70%  [ 7 ]
601-650
20%
 20%  [ 2 ]
651-700
10%
 10%  [ 1 ]
cock pushups
0%
 0%  [ 0 ]
Total Votes : 10

Author Message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Fri Jan 25, 2013 3:51 pm    Post subject: new 406 aka "cornholio" Reply with quote

i bought a 406 sbc from a dude that runs 10.60's in a similar weight,gear ratio car
i also bought his converter and trans Very Happy

anyway motor was built profesionally and refreshened by the same guy may of 11 (so only 1 season on refresh)
long story short.......it was all messed up

was advertised as 13.5:1 nope 12.48 on 1 bank and 11.49 the other.......im not gonna get into this long story

now all fixt up

Block 817 splayed billet main caps
Filled
Ford sized bushed lifter bores

12.94:1 srp 2618 4cc dome pistons
hung on 5.7 scat rods
and eagle crank

comp cams billet roller
279@ .050 .675" lift with 1.5 rocker
286@ .050 .645" lift with 1.5 rocker
108 lsa

heads old 210 afr's fully hogged out
i dont usually care to ask about flow....but they did do 308@.700
super vic ported to match

im going e85
so i just got a qf1050 4150 style carb

whatcha think itll make????? Laughing Cool

_________________
Back to top
View user's profile Send private message
Big Dave
Moderator


Joined: 04 Dec 2005
Posts: 2646
Location: Tampa Florida
119973.02 points



PostPosted: Fri Jan 25, 2013 6:08 pm    Post subject: Reply with quote

Rule of thumb is you double the air flow of your heads as being the theoretical upper limit on your horsepower when normally aspirated. Odds are against you actually hitting that number, so I would say under 600. Looks like a nice combination, but I am currious as to why you had one bank so low compared to the other?

Big Dave
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Fri Jan 25, 2013 7:53 pm    Post subject: Reply with quote

Head gaskets
1@ .041
other@ .071

_________________
Back to top
View user's profile Send private message
89Gmcsierra
Member


Joined: 28 Oct 2012
Posts: 65
Location: Hazleton, Iowa
2274.42 points



PostPosted: Sat Jan 26, 2013 7:47 am    Post subject: Reply with quote

I've seen some horrible stuff in "pre-built" engines one locked up and so tearing down this "500 horse" 440 ended up it has 6 different types of pistons in it 2 cylinders .030 over. horrible. just like friends mustang beautiful looking engine. had big parkers funnel w/e intake and 750 demon and motor started knocking tear it down. get 3" stroke and 3 5/8" bore this supposedly 306 was a 255. so I've seen way worse things. luckily it was as easy as changing head gaskets.
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sat Jan 26, 2013 9:04 am    Post subject: Reply with quote

Ohhhhhh hell no it was worse more than just head gaskets
_________________
Back to top
View user's profile Send private message
clay
Moderator


Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points


1972 Chevrolet Nova

PostPosted: Sat Jan 26, 2013 9:53 am    Post subject: Reply with quote

I too have seen engines that someone thought they had to massage everything and made a huge mess out of stuff. Glad you got it together. I voted for around 650. Clay
_________________
I have done so much with so little for so long, I can now do anything with nothing.
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sat Jan 26, 2013 10:45 pm    Post subject: Reply with quote

I invested $430 in block work prep
the only previous problem was
One of the splayed bolt holes was stripped
And for whatever reason it was built with main bolts instead of studs. Some material was removed from the maincap so the bolts had more engagement in the block
New cam bearings
Plugs
Full fill

I invested $550 in headwork (he owed me $500) so $1050
Ported heads and intake 40 cfm found
Sunk valves farther into seats on one head and swapped valves side to side (margins differed) for p to v
Resleeved headbolt holes.....you know the ones
Checked valvesprings..240 on the seat
NOW THE HEADS ARE EVEN SIDE TO SIDE
I was even able to use a .027 cometic

The oil pan was stripped of everything other that a trap door baffle
I replaced with a good hamburgers pan

_________________
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sat Jan 26, 2013 10:51 pm    Post subject: Reply with quote

Yeah clay thats what my head porter thinks too
he had a similar build whitch made that with 1 7/8 headers, which i have not
Im hoping for 630ish

I know what it made before
I am going to a different dyno guy (highly recomended) my guy retired
and as far as dyno goes first expierience with ethanol

_________________
Back to top
View user's profile Send private message
89Gmcsierra
Member


Joined: 28 Oct 2012
Posts: 65
Location: Hazleton, Iowa
2274.42 points



PostPosted: Sun Jan 27, 2013 10:13 am    Post subject: Reply with quote

Keep it posted have few engines i wish i could get dyno'd but all i know of around in my area is chassis dynos. have engine been assembling have lots of tuning to do to it. its a 3400 bored .020 over with .550 lift cam from WOT-Tech and ported heads ported intake and single turbo with 40 lbs injectors and throttle body from 4.6L caddy engine. I want to see 400 horse but not sure. 14-16Lbs of boost
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sun Jan 27, 2013 10:24 am    Post subject: Reply with quote

Im the only tech @ my shop that like the 3400 good luck with the boost build
_________________
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sun Jan 27, 2013 10:27 am    Post subject: Reply with quote

And another problem i forgot to mention
The valvespring locators and retainers were so loose fitting you can see the dancing marks sending metal through the motor,and evena broken guideplate

I fixt all that and tried the comp tool steel retainers.....spendy but im hoping worth it

_________________
Back to top
View user's profile Send private message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2404
Location: Townsend, Mass.
81616.60 points


1971 Chevrolet Chevelle

PostPosted: Sun Jan 27, 2013 11:35 am    Post subject: Reply with quote

Should have went with the titanium retainers. I have always run them and they are indestructible as well as light.
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
af2
Member


Joined: 01 Sep 2003
Posts: 5558
Location: grassvalley, ca
71227.76 points


1933 Willys Coupe

PostPosted: Sun Jan 27, 2013 2:02 pm    Post subject: Reply with quote

Jon might be running dual springs with a damper and if so the Ti retainers will Gaul.

Sounds like you have a good handle on the messed up situation.
Back to top
View user's profile Send private message
squeeezer
Member


Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Sun Jan 27, 2013 11:50 pm    Post subject: Reply with quote

No dampers in theese springs,cant say ive run non dampener springs before
Anyway ti.retainers are big bucks
Mainly i went with theese cause dimensionally they were right
Holly shyte they are lyte Laughing

_________________
Back to top
View user's profile Send private message
Paul P
Member


Joined: 15 Aug 2002
Posts: 2404
Location: Townsend, Mass.
81616.60 points


1971 Chevrolet Chevelle

PostPosted: Mon Jan 28, 2013 9:16 am    Post subject: Reply with quote

"Cornholio"? Is that me or Adam? Laughing
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi

1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Small Block Gen 1 All times are GMT - 5 Hours
Goto page 1, 2, 3  Next
Page 1 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
Home | Contact Us | Automath | Cam Files | Dyno Search | Forum | Garage | Picture Gallery | Reaction Timer

Copyright 1997-2016 SMOKEmUP.com All rights reserved.
Advertising Info     Disclaimer     Privacy Policy