C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

1981 Engine question.......

Old Jun 16, 2006 | 01:06 PM
  #1  
hensen1954's Avatar
hensen1954
Thread Starter
Drifting
 
Joined: Sep 2004
Posts: 1,307
Likes: 1
From: Milford Haven Pembrokeshire
Default 1981 Engine question.......

Ok - having a rethink about my engine and car in general.

As my engine is now - fiddled with ( very badly ) in Japan, it goes quite well - is terrible with gas consumption and smells bad. So be it - its what I bought.

Route 1 is - use the parts I already bought, 58cc alloy heads, manifold, cam, headers , true duals, etc - usual first step stuff - and get the autobox to lock up in top again.
With the above sort of stuff - am I gonna get about 300 hp ? And if so - anybody guess at gas milage ?

Route 2 is the 383 stroker. Gonna need a bigger cam etc - and might end up in the 5oo bhp region I guess. So, 383 owners - tell me about gas milage.

Bottom line is - for now at least - do I take it in stages and use what I already bought ??

All thoughts appreciated - Hugo, in good old West Wales - UK.
Reply
Old Jun 16, 2006 | 01:38 PM
  #2  
a1sensei's Avatar
a1sensei
Melting Slicks
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Mar 2006
Posts: 2,465
Likes: 0
From: Orange Park Fl
Default

could use more detail on heads, cam, etc. But I would think that you wouldn't want to go with a 383 if fuel economy is part of the equation. God bless, Sensei
Reply
Old Jun 16, 2006 | 01:43 PM
  #3  
Ak. Mal's Avatar
Ak. Mal
Race Director
10 Year Member
 
Joined: Oct 2000
Posts: 11,891
Likes: 3
From: Kansas City, MO ...I'd like to go fishing and catch a fishstick. That'd be convenient. - Mitch Hedberg
Default

Your aluminium rear end can't take much more than 400hp. Take that into consideration when contemplating a high hp engine.
Reply
Old Jun 16, 2006 | 07:45 PM
  #4  
hensen1954's Avatar
hensen1954
Thread Starter
Drifting
 
Joined: Sep 2004
Posts: 1,307
Likes: 1
From: Milford Haven Pembrokeshire
Default

anybody wanna tell me what they get out of a 383 with auto box ??
Reply

Get notified of new replies

To 1981 Engine question.......



Thread Tools
Search this Thread

All times are GMT -4. The time now is 11:25 PM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE