Project LS7 454 (pics)
Race Director
Joined: Jan 2000
Posts: 13,015
Likes: 2,260
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Sounds killer! I know someone that's going to have some fun in Dallas this weekend!
JIM
JIM
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Hey Rob, if you get it driving....bring it over to Mike Dyers tomorrow during the day....I am coming up to Mikes to pick up my IRS stuff around lunch time, I'll probably hang out a couple hours....
Thread Starter
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
Hey thanks, for listening/looking... 
Gotta love digital technology...
I need to get a nice drop base air cleaner set up. My old one is like maybe 1 inch. Not sure if that will be low enough for me to put on a 3 inch x 14 inch filter to fit under the L88 hood.
Thanks,
Gotta love digital technology...
I need to get a nice drop base air cleaner set up. My old one is like maybe 1 inch. Not sure if that will be low enough for me to put on a 3 inch x 14 inch filter to fit under the L88 hood.
Thanks,
Thread Starter
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
He is also on the far side of town from me. I was over in his area last week getting my R4 AC hose/pipe cut and re-welded so it would not stick up so high. It was bumping the bottom of the hood. Mike had recommended that place to me. They can do anything with pipe and hoses, fittings, connections, etc.
Advanced
Joined: Jun 2007
Posts: 94
Likes: 0
From: Salem NH
Sorry to detract from the issue here but I've got what I think are LS 7 heads but they're 291 heads, "HI_PERF" and all.
What do you guys think I have? They're cast iron and have no problem revving to 6,500.
Thanks if anyone knows anything...
What do you guys think I have? They're cast iron and have no problem revving to 6,500.
Thanks if anyone knows anything...
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Burning Brakes
Joined: Feb 2009
Posts: 958
Likes: 192
From: Downingtown Pa.
Engine should be a bunch of fun on the street. I bought one of the crate 3/4 engines back in 1973 for the grand sum of $918 put it in my 66 coupe complete with the .600 cam . It replaced a L-88 that I had put in a year earlier. I had someone who wanted the L-88 and sold it with cash to spare for the LS-7. Car was a street/SCCA regional A production car at that time. Back then Sunoco 260 was easily available so the 12.5-1 compression was no problem. It was a bear on the street. No low end but would pull like nothing else above 3000. I pulled it out when I discoved that I could no longer run the car in SCCA A production with the 454. It would have put me in A/SR which was old Can Am car territory !!! It ended up in an 1969 IMSA styled street car. This was back in 1976. For todays gas I would go to 10-1 and either a roller solid or hydraulic cam depending on how you intend to use the car. -------------------------- Ken McCorry
Last edited by keystonefarm; Oct 1, 2010 at 10:12 PM.
Thread Starter
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
Trip, The LS7 original heads end in 990. Check out the first page of this forum I have the description/stamp codes listed. I do not think 291 are it. They might be from another block. See what the date code stamps are on the heads.
Thanks to everyone for looking/feedback.
Thanks to everyone for looking/feedback.
Thread Starter
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
A few updates:
I can finally shut my hood all the way thanks to the correct drop base air cleaner assembly. Getting the hood to fit was another story.
arjothm , rajsid, and a few others with BB L88 hoods were using these with success. The standard drop base which is about 1.5 inch which is all could find locally did not work.
I am now using LT1/L88 drop base from the vendors. It drops it at least a good 2 + inches. I had heard rumors that many of the deep drop bases from s*mmit seemed to be falsely advertised and were not as low as described. I have plenty of room according to the playdoh test now.
Been jacking with the carb to get it tuned right. I think I am close, but will probably need smaller power valves, do not think the 6.5 is going to cut it based on my vaccumm readings.
Here are a few pics, once again the lighting has failed me. Need to take these during the day time.
The shiny stuff is already in need of a cleaning. Sure gets dusty under the hood.
[IMG]
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Here are a few phone pics. Yes, I know the lighting.
I took her out for our first drink together. She drank about 22 gallons and there was at least 2 gal in her before we got there. Cost me damn near $65....
Based on my un-reliable gas gauge, I think I am getting around 10-11 mpg in the city.
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Few more close to dusk.
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I can finally shut my hood all the way thanks to the correct drop base air cleaner assembly. Getting the hood to fit was another story.
arjothm , rajsid, and a few others with BB L88 hoods were using these with success. The standard drop base which is about 1.5 inch which is all could find locally did not work.
I am now using LT1/L88 drop base from the vendors. It drops it at least a good 2 + inches. I had heard rumors that many of the deep drop bases from s*mmit seemed to be falsely advertised and were not as low as described. I have plenty of room according to the playdoh test now.
Been jacking with the carb to get it tuned right. I think I am close, but will probably need smaller power valves, do not think the 6.5 is going to cut it based on my vaccumm readings.
Here are a few pics, once again the lighting has failed me. Need to take these during the day time.
The shiny stuff is already in need of a cleaning. Sure gets dusty under the hood.
[IMG]
[/IMG][IMG]
[/IMG][IMG]
[/IMG]Here are a few phone pics. Yes, I know the lighting.
I took her out for our first drink together. She drank about 22 gallons and there was at least 2 gal in her before we got there. Cost me damn near $65....
Based on my un-reliable gas gauge, I think I am getting around 10-11 mpg in the city.
[IMG]
[/IMG][IMG]
[/IMG][IMG]
[/IMG][IMG]
[/IMG]Few more close to dusk.
[IMG]
[/IMG][IMG]
[/IMG]
Last edited by Rebelrob; Oct 21, 2010 at 10:16 AM.
Melting Slicks
Joined: May 2002
Posts: 2,717
Likes: 121
From: Sulphur LA
St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19,'24, '25
That's a beautiful car you have there and welcome to the BBC party
Nothing like it
that thing sounds nasty
now get out and drive it and enjoy your hard work
Neal
Nothing like it
that thing sounds nasty
now get out and drive it and enjoy your hard work
Neal
Pro
Joined: Jun 2004
Posts: 543
Likes: 2
From: Miami FL
St. Jude Donor '11, '14
Beautiful car, the engine sounds incredible.
A small suggestion, I have had bad luck with oil filled canister style coils overheating when mounted sideways like yours. We use E-core style coils or mount them vertically.
Rob
(the other one)
A small suggestion, I have had bad luck with oil filled canister style coils overheating when mounted sideways like yours. We use E-core style coils or mount them vertically.
Rob
(the other one)
Last edited by MrForce; Oct 21, 2010 at 03:35 PM.
Thread Starter
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
Thanks for all the comments... still work in progress as I keep saying.
