Cheap Engine !!! - Need ideas - Corvette Forum : DigitalCorvettes.com Corvette Forums
 
 
Go Back   Corvette Forum : DigitalCorvettes.com Corvette Forums > C3 Corvette Forums > C3 Corvette
Register Forums Garage Garage Mark Forums Read Auto EscrowInsurance Advertise

Notices

C3 Corvette
C3 Corvette General | Technical | Performance | Aftermarket | Discussions

Other sections:
Corvettes Classifieds
Corvette Detailing & Car Care
Corvette Audio/Video/Radar
General Automotive/Shop/Tools
Corvette Performance Driving/Racing

( Sponsored by: Zip Corvette Parts )

Shops/Tuners
Custom Image Corvettes
A&A Corvette
Corvette tuner

Interior
Corvette aftermarket products

Insurance



Parts & Products
Race Ramps
Edelbrock
ATI/Procharger
Corvetteguys.com
Melrose Motorsports
Parts Taxi
Airaid
Pfadt Racing
Madvette Motorsports
Hi-tech Custom Concepts
Corvette Garage
Corvette Parts and Accessories
Corvette Car Care Products
Corvette HID

Tracks/Schools
Bob Bondurant School of High Performance Driving
Corvette driving school

Wheels/Tires
Cray Wheels

Services
BADWERKS.com
Reply
 
Thread Tools
Old 03-26-2008, 07:53 PM   #1
jestrab
 
Posts: 2
Member #71465
Member since: Mar 2008

Thanks: 0
Thanked 0 Times in 0 Posts
Cool Cheap Engine !!! - Need ideas

Ok, so "Cheap Engine" not really a true thing... I have a 78 corvette and as everyone knows they sort of lacking a certain power. What I want to do is build an engine for my Vette that will beat my buddies Stang... He has a 351 (nothing special) pretty standard built truck motor in a 67 350 shelby look alike. I have a 78 Vette (a real car) but I am a little iffy on how much I want to do with the engine. I will go into a little detail on spec's in the next paragraph.

I have a couple specific issue's / concerns:
1. I want my headlights to work
A. The engine must provide enough vacume for the headlights, AC,
heat dampers, etc to work properly...
2. I don't want an engine that will only run on the strip
A. I am willing to install a stall converter (1500 - 2000 stall)
B. but I like the sound of a lope
C. but I want to hear the radio.. :-)
3. I WANT TO SPIN MY TIRES ANY TIME I WANT
A. Currently my "weak" engine (it sat for 4 years without start so it is
tired) won't cherp, spin, etc...
5. Cost and Time
A. I would like to keep the cost under 1000, however that is a
laugh thus I can go up to maybe 2000 (but really perfer to
stay below 1500)


I have searched several forum's and have not found a satisfactory answer yet, Hopefully you will be able to assist me.

Thanks
jestrab is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-26-2008, 08:02 PM   #2
mvette76
DC Crew
 
mvette76's Avatar
 
Posts: 61
Member #66153
Member since: Oct 2007
Location: coon rapids mn

My Corvette(s)
1975 l82

Thanks: 0
Thanked 0 Times in 0 Posts
do a compression test first to see where your at with current motor and possibly a good tune would get the power you want!
mvette76 is offline   Reply w/quote Quick reply to this message
1975 L82 t400 red,black
Old 03-26-2008, 08:44 PM   #3
ZZ71s
DC Crew
 
Posts: 1,144
Member #61498
Member since: Jun 2007
Location: Kentucky

My Corvette(s)
1971 stingray 350

Thanks: 0
Thanked 3 Times in 3 Posts
Think about this combo
ZZ4 short block and edlebrock 430 top end kit
This is the edlebrockcrate engine 430 hp kit for alot less

Last edited by ZZ71s; 03-26-2008 at 09:22 PM.
ZZ71s is offline   Reply w/quote Quick reply to this message
 
Old 03-26-2008, 08:44 PM   #4
SinisterC6
Caution: Car melts in Rain
 
SinisterC6's Avatar
 
Posts: 4,151
Member #48952
Member since: Aug 2006

My Corvette(s)
shhh Its a secret

Thanks: 0
Thanked 0 Times in 0 Posts
if not go to a junkyard and hunt down a 454
SinisterC6 is offline   Reply w/quote Quick reply to this message
Old 03-26-2008, 09:10 PM   #5
big_G
DC Crew
 
big_G's Avatar
 
Posts: 1,197
Member #62397
Member since: Jul 2007
Location: Austin, Texas

My Corvette(s)
Supercharged '68C, L-79'68R, L-71'69C

Thanks: 0
Thanked 0 Times in 0 Posts
If you had about 3K to play with, I'd say stroke it (383). IMO, you don't have a realistic budget to make wholesale improvements like cam and heads (a must).
big_G is offline   Reply w/quote Quick reply to this message
Old 03-27-2008, 01:52 AM   #6
mrvette
Account Disabled.
 
Posts: 3,855
Member #59755
Member since: Apr 2007
Location: Orange Park Florida

My Corvette(s)
'72 hotrod custom

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by big_G View Post
If you had about 3K to play with, I'd say stroke it (383). IMO, you don't have a realistic budget to make wholesale improvements like cam and heads (a must).
IF you can, ditch the cat, and put on true duals, change the induction to something used off ebay, dual plane, send the carb to LARS for rebuild, and get that timeing correct in the dizzy, B2B can help there....

looking for 36-8 degrees at 3000 rpm, no vac advance, eliminate all that smog controll on it....get a 180 stat in there and leave the raw castings for the rams horns on there, but eliminate all that heat riser valves/crossover crap.....use a decent air cleaner assy, I think you be outta there for less than a grand easy....

ASSUMING there are NO serious operational problems with the engine...like valves, cam, short block, etc....that is your issue price wise....

mrvette is offline   Reply w/quote Quick reply to this message


GENE

IT is not the SIZE of the problem, but the perfection of the solution......

Airheads are immune to logic and common sense.

www.mrvette.shutterfly.com
Old 03-27-2008, 02:19 PM   #7
rtj
 
rtj's Avatar
 
Posts: 4,075
Member #52011
Member since: Oct 2006
Location: orlando fl usa

My Corvette(s)
75/502, C6 Z06, 70 ProStreet

Thanks: 4
Thanked 45 Times in 44 Posts
The GM perfomance parts 454 is pretty well priced. There are lots of articles in the magazines or in the bookstores on build-ups based on these motors.
rtj is offline   Reply w/quote Quick reply to this message
Old 03-27-2008, 02:28 PM   #8
big2bird
DC Crew
 
big2bird's Avatar
 
Posts: 5,916
Member #58543
Member since: Mar 2007
Location: Anaheim,Ca.,USA

My Corvette(s)
1981 T-Top Caprice powered Disco Buggy

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by big_G View Post
If you had about 3K to play with, I'd say stroke it (383). IMO, you don't have a realistic budget to make wholesale improvements like cam and heads (a must).
When you find out how, let me know.
big2bird is offline   Reply w/quote Quick reply to this message
Old 03-27-2008, 02:47 PM   #9
Fauxrs
DC Crew
 
Fauxrs's Avatar
 
Posts: 178
Member #64413
Member since: Sep 2007
Location: San Diego, CA

My Corvette(s)
1978 L-82 5-speed

Thanks: 0
Thanked 0 Times in 0 Posts
is your engine a L-48 or L82?

since you mention a torque convertor its easy to assume you have an automatic...
L-48 means 3.08:1 rear - L-82 would be 3.55:1

get a pair of vortech heads $620 these are excellent flowing heads that will bump the CR of your dished piston motor

find the cheapest aluminum intake for a vortech you can get. $169

cam & lifters.... $107this cam isnt all that powerful although its better than an L-82 cam and light years ahead of a L-48 cam.... it will give you a very mild lope but will run strong...

there are a bazillion cams so I offer this only as a budget starting point.

Ditch your Catalytic converter if you can - otherwise go to a high flow unit $150

you can keep your rams horns for now (i think they will work with the vortech heads.... could be wrong there) but regardless open up that exhaust anyway you can...duals are best... or get a set of these $90

theres a start for you.. it would wake up a L-48 ike nobodies business and would be an improvement over an L-82 as well... its no fire breather...but thats easily adjustable with a better cam - headers - and a good exhaust...but you got a tight budget....cant expect the moon

thats just a hair over a grand - not including fluids gaskets and your time...it doesnt require you to pull the motor and could be accomplished over a relaxed weekend.
Fauxrs is offline   Reply w/quote Quick reply to this message
Old 03-28-2008, 01:10 PM   #10
Spezzy
DC Crew
 
Spezzy's Avatar
 
Posts: 297
Member #64845
Member since: Sep 2007
Location: CA

My Corvette(s)
76 Stingray

Thanks: 2
Thanked 3 Times in 2 Posts
Quote:
Originally Posted by Fauxrs View Post
is your engine a L-48 or L82?

since you mention a torque convertor its easy to assume you have an automatic...
L-48 means 3.08:1 rear - L-82 would be 3.55:1

get a pair of vortech heads $620 these are excellent flowing heads that will bump the CR of your dished piston motor

find the cheapest aluminum intake for a vortech you can get. $169

cam & lifters.... $107this cam isnt all that powerful although its better than an L-82 cam and light years ahead of a L-48 cam.... it will give you a very mild lope but will run strong...

there are a bazillion cams so I offer this only as a budget starting point.

Ditch your Catalytic converter if you can - otherwise go to a high flow unit $150

you can keep your rams horns for now (i think they will work with the vortech heads.... could be wrong there) but regardless open up that exhaust anyway you can...duals are best... or get a set of these $90

theres a start for you.. it would wake up a L-48 ike nobodies business and would be an improvement over an L-82 as well... its no fire breather...but thats easily adjustable with a better cam - headers - and a good exhaust...but you got a tight budget....cant expect the moon

thats just a hair over a grand - not including fluids gaskets and your time...it doesnt require you to pull the motor and could be accomplished over a relaxed weekend.

Great advice. Any tutorials out there on how one would replace the heads and cam? I'm a beginner at all this, lol.
Spezzy is offline   Reply w/quote Quick reply to this message
Old 03-29-2008, 07:01 PM   #11
Fauxrs
DC Crew
 
Fauxrs's Avatar
 
Posts: 178
Member #64413
Member since: Sep 2007
Location: San Diego, CA

My Corvette(s)
1978 L-82 5-speed

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by Spezzy View Post
Great advice. Any tutorials out there on how one would replace the heads and cam? I'm a beginner at all this, lol.
Books - there are plenty of them about hopping up small and big block chevy's.. hell even a haynes manual will take you through the process of doing heads.
Fauxrs is offline   Reply w/quote Quick reply to this message
Old 03-30-2008, 03:34 AM   #12
69MyWay
DC Crew
 
69MyWay's Avatar
 
Posts: 4,751
Member #2007
Member since: Aug 2003
Location: Clinton, IL

My Corvette(s)
Vetteless in the Midwest...at least for now

Thanks: 13
Thanked 99 Times in 76 Posts
Find one of these on sale:

http://store.summitracing.com/partde...5&autoview=sku

Go to max boost for your low compression engine.

Spend a few more bucks on a matching carb and tune up issues.
69MyWay is offline   Reply w/quote Quick reply to this message
Old 03-30-2008, 09:29 PM   #13
jestrab
 
Posts: 2
Member #71465
Member since: Mar 2008

Thanks: 0
Thanked 0 Times in 0 Posts
Ok... Upgrade to the question

I may be able to spend a little more... Here is what I am going to have to deal with...

I am thinking about purchasing a 70's model 350 motor out of a pickup, it is a 4-bolt main and has flat top pistons. Currently it has 1.94 intake / 1.50 exhaust valves.

  1. should I buy it
  2. If so what should I plan on upgrade wise... (assuming all machine work is already done)
  3. I was thinking 383 stroker...
jestrab is offline   Reply w/quote Quick reply to this message
Old 03-31-2008, 07:44 AM   #14
Fauxrs
DC Crew
 
Fauxrs's Avatar
 
Posts: 178
Member #64413
Member since: Sep 2007
Location: San Diego, CA

My Corvette(s)
1978 L-82 5-speed

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by jestrab View Post
I may be able to spend a little more... Here is what I am going to have to deal with...

I am thinking about purchasing a 70's model 350 motor out of a pickup, it is a 4-bolt main and has flat top pistons. Currently it has 1.94 intake / 1.50 exhaust valves.

  1. should I buy it
  2. If so what should I plan on upgrade wise... (assuming all machine work is already done)
  3. I was thinking 383 stroker...
Unless your L-48 is in real world of hurt, there aint nothing within your budget you can do to that motor that you cant do to your existing motor and get the same results. the only difference being the pistons and the 4 bolt mains..

4 bolt mains are worth nothing powerwise by themselves...new pistons are cheaper than a motor most likely...

and if your gonna stroke the motor well then wave bye-bye to the budget youve outlined cause your gonna need at least double (if not triple)

Last edited by Fauxrs; 03-31-2008 at 08:24 AM.
Fauxrs is offline   Reply w/quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Corvette Forum : DigitalCorvettes.com Corvette Forums forums, you must first register.
Please enter your desired user name (12 CHARACTERS MAXIMUM), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
City / State / Country?
Where you live
What kind of Corvette(s) do you own?
This field is not required.
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
c-4 start and run problem/solutions grumpyvette General Automotive & Shop 5 11-06-2007 06:02 PM
2005 DTC List MAVEN C6 Corvette 4 04-09-2006 08:17 PM
GXP Solstice is smoking hot. Here's the info! JBsZ0666 Other Cars, Trucks & Cool Rides 5 01-01-2006 08:34 PM
more turbo info grumpyvette C4 Corvette 3 05-13-2005 02:14 PM
relatively cheap proven engine combos grumpyvette C3 Corvette 4 10-12-2003 04:58 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -6. The time now is 11:34 PM.




Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
2003-2011, DigitalCorvettes.com - All Rights Reserved