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Old 08-12-2018, 02:56 PM   #31
autowiz
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Quote:
Originally Posted by TNprogrammer View Post
so the engine and trans are out and we're in the process of removing/replacing stuff in the engine compartment. I'm removing all the vacuum stuff for the lights as we're converting to electric. Can someone tell me what this is? It sits right under the brake booster.
https://photos.app.goo.gl/MecUyKCEBfW74SkX9
That is a part of your cruise control. We usually eliminate those and get a speedometer cable for a car without cruise control. That is if you are deleting the cruise.
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Old 08-12-2018, 03:02 PM   #32
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Thanks for the info. I could care less about cruise. That stuff is outta here
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Old 08-13-2018, 10:06 AM   #33
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Wiz, am I going to need to use the big block or small block mounts for this 454? Also, should I use an early c3 big block oil pan?
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Old 08-13-2018, 02:05 PM   #34
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http://garage.grumpysperformance.com...617/#post-6756


Grumpys site shows SBC & BBC Mounts are the same except the 307 Chevy.
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Old 08-13-2018, 02:07 PM   #35
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Run a stock BBC oil pan if on a budget.

Really want at least an 8 quart racing pan.

12 quarts better yet.
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Old 08-13-2018, 03:48 PM   #36
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Wiz, am I going to need to use the big block or small block mounts for this 454? Also, should I use an early c3 big block oil pan?
There are 2 different mounts used for c3 corvettes. BB and SB share the same mounts. The difference is the width of the frame perch. On the side of the engine mount that attaches to the frame, you will need to measure the width between the ears of the mount, OR measure the width of the frame perch where the mount sits. I think some were 2" and some were 2 5/8" or something along those lines. I strongly recommend energy suspension urethane mounts. They have very little deflection. you will either need these:
https://www.jegs.com/i/Energy-Suspen...BoCBioQAvD_BwE
Or these:
https://www.jegs.com/i/Energy-Suspen...1114G/10002/-1
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Old 08-13-2018, 03:51 PM   #37
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Also, should I use an early c3 big block oil pan?

yup. 1974 BB C3 oil pan.
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Old 08-13-2018, 06:05 PM   #38
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If you use a High volume oil pump be sure to use an aftermarket high capacity oil pan made for Road race.
Or Drag Race for what your intentions are.

Stock pan use a stock oil pump only.

High volume pump you run the risk of sucking the pan dry at high rpms.

Grumpy has 50 pages on this topic.
Worth reading all.

Always used a drag race pan on my TA.
HIGH Volume high pressure oil pump I use.
9 quarts in the pan.
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Old 10-04-2018, 06:38 AM   #39
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I'm In

I am interested in your restoration and look forward to following along. Good luck and best regards, David
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Old 10-24-2018, 02:43 AM   #40
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i have the gold Crane alum-body roller rockers under my cast alum valve covers. you can't run the tall valve covers, probably wouldn't be able to remove them to check valve lash, etc, with the factory booster, but you can use the medium-height valve covers. Mine aren't pretty, but you get the idea for clearance by the stock factory brake booster.


also, I have a 700R4 in my car, if you use the trans mounting boss that's part of the trans case, instead of the trans mount on the tailshaft housing, you can adapt the C3 TH350 adapter that goes in front of the trans cross member, I think you just have to elongate the slot, something like that. for my TCC engage, i only use the 4th-gear pressure switch. I found that the vacuum disconnect switch, and the brake light switch disconnect were not conducive to around-town driving and highway cruising, actually, they were annoying. The trans has been fine for quite a few years now, it's got a few extra clutches, other fixes that were recommended in the ATSG tech manual. I used it as my daily driver off-and-on for about 10 yrs. it looks it.

Once I had the engine in, and the trans mounted, I took some measurements and ordered up a driveshaft from Denny's. They were pretty quick, fit perfect (of course, dependent on my measurements). I used Moroso solid steel motor mounts, and a polyurethane trans mount. Do not ever use a steel trans mount, for sure you'll crack the trans case, regardless, whether it's a Powerglide or a 4L80E.

I used the LS7 (BBC) oil pan, not compatible with the PS hydraulic ram. drove it with no PS for a long time, just recently installed the Borgeson box. Obviously, the 1970-vintage LS7 Mark IV BBC oil pan is not compatible with a Gen V BBC (1-piece rear main seal).

I had Hedman headers, but recently installed cast iron exhaust manifolds. I generously ported the insides of the exh manifolds, gasket matched the ports, and hogged out the outlet to 2-3/4". and used 2-3/4" SS exhaust pipes to the crossmember, 2-1/2" to the back.

Last edited by rpol98; 10-28-2018 at 12:38 AM.
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