How about a Hemi in a Corvette?
03-02-2018, 10:36 PM
#1
Le Mans Master
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How about a Hemi in a Corvette?
Sounds sorta sacrilegious???
What about this- a Hemi headed LS -
article- http://www.hotrod.com/articles/hemi-...9D9BB525659E19
"Only" 636 HP on pump gas.
What about this- a Hemi headed LS -
article- http://www.hotrod.com/articles/hemi-...9D9BB525659E19
"Only" 636 HP on pump gas.
Last edited by Richard454; 03-03-2018 at 10:45 AM.
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PK4268 (07-24-2018)
03-02-2018, 11:55 PM
#2
That looks like a BIG bucket of money.
03-03-2018, 12:24 AM
#3
Le Mans Master
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To big and heavy. Beautiful motor though but just to big.
Let me totally infuriate you Richard and suggest how bout a supercharged Northstar V8??? Aluminum block and 4 valves per cylinder. Probably 30% smaller and 30% lighter than that Hemi.
I never really cared for ZR1 aluminum motor. I guess it got to complicated with that dual runner intake.
Another compact package could be a triple rotor Mazda rotary motor - turbo charged. That would be too light and too powerful.
Let me totally infuriate you Richard and suggest how bout a supercharged Northstar V8??? Aluminum block and 4 valves per cylinder. Probably 30% smaller and 30% lighter than that Hemi.
I never really cared for ZR1 aluminum motor. I guess it got to complicated with that dual runner intake.
Another compact package could be a triple rotor Mazda rotary motor - turbo charged. That would be too light and too powerful.
03-03-2018, 02:39 AM
#4
Race Director
I think it needs a longer exhaust rocker. Those look kinda short...
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03-03-2018, 07:44 AM
#5
Drifting
^ my thoughts exactly, looks as big as a banana.
The idea is very intriguing...but my bank account cringes at the thought of the cost...
That said, his 380cfm intake flow is right there with aftermarket castings from Texas Speed and others in out of the box form.
At this point, it ain't worth the conversion for little gain.
I'm sure there's more to come, though!
The idea is very intriguing...but my bank account cringes at the thought of the cost...
That said, his 380cfm intake flow is right there with aftermarket castings from Texas Speed and others in out of the box form.
At this point, it ain't worth the conversion for little gain.
I'm sure there's more to come, though!
Last edited by L88Plus; 03-03-2018 at 07:53 AM.
03-03-2018, 11:04 AM
#7
Le Mans Master
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Well-
Get a LS3 production motor and bolt on the heads- so it's not gonna be that much heavier than the stock LS which weighs in at about 450lbs.
OK- the heads and cam are $6K- and you can get a 416CI shortblock for about the same...It's really not that much money.
PLUS- it looks good!!!
These guys are also doing Hemi heads for the SBF.
BTW- looks like it'll be under the hood of a Detroit Speed's 69 Camaro
Richard
Get a LS3 production motor and bolt on the heads- so it's not gonna be that much heavier than the stock LS which weighs in at about 450lbs.
OK- the heads and cam are $6K- and you can get a 416CI shortblock for about the same...It's really not that much money.
PLUS- it looks good!!!
These guys are also doing Hemi heads for the SBF.
BTW- looks like it'll be under the hood of a Detroit Speed's 69 Camaro
Richard
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03-03-2018, 02:15 PM
#11
Le Mans Master
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I couldn't find a picture of an early 392 combustion chamber, but if it didn't look like this, it wasn't a true hemispherical combustion chamber either:
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/build...ap-get-436-hp/
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/build...ap-get-436-hp/
Last edited by Priya; 03-03-2018 at 02:24 PM.
03-03-2018, 02:26 PM
#12
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03-03-2018, 02:26 PM
#13
I couldn't find a picture of an early 392 combustion chamber, but if it didn't look like this, it wasn't a true hemispherical combustion chamber either:
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/392-c...t-speed-parts/
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/392-c...t-speed-parts/
Exactly.
Today's "HEMI" is a hemi like a BBC is a "Turbo-Jet" or an Olds is a "Rocket"
03-03-2018, 11:02 PM
#15
Safety Car
I couldn't find a picture of an early 392 combustion chamber, but if it didn't look like this, it wasn't a true hemispherical combustion chamber either:
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/build...ap-get-436-hp/
Edit: The early chrysler hemis had a true hemispherical combustion chamber, not the non-hemi chamber shown in post # 1.
http://www.hotrod.com/articles/build...ap-get-436-hp/
03-03-2018, 11:10 PM
#16
Drifting
Just because you can, doesn't mean you should.
There are only TWO engines allowed in a 3rd gen Corvette.
A 350.
A 454.
Any variation of heads, cranks, blocks and cams are allowed as long as they are derived from original Chevy designs
This is the internet and my opinion matters.
There are only TWO engines allowed in a 3rd gen Corvette.
A 350.
A 454.
Any variation of heads, cranks, blocks and cams are allowed as long as they are derived from original Chevy designs
This is the internet and my opinion matters.
Last edited by Scottd; 03-03-2018 at 11:11 PM.
03-04-2018, 12:23 AM
#17
Team Owner
Of course it does!!! 
Now, back to the action.....
Now, back to the action.....
03-04-2018, 01:12 PM
#18
Le Mans Master
Just because you can, doesn't mean you should.
There are only TWO engines allowed in a 3rd gen Corvette.
A 350.
A 454.
Any variation of heads, cranks, blocks and cams are allowed as long as they are derived from original Chevy designs
This is the internet and my opinion matters.
There are only TWO engines allowed in a 3rd gen Corvette.
A 350.
A 454.
Any variation of heads, cranks, blocks and cams are allowed as long as they are derived from original Chevy designs
This is the internet and my opinion matters.
