377 ci internals
Thread Starter
Joined: Aug 2001
Posts: 1,589
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From: British Columbia
Car: 90 IROC 5.7 hardtop
Engine: L98
Transmission: T5 swap
Axle/Gears: Yup -- they still work
377 ci internals
Does anyone know if the stock 3.48 crank and 5.7 rods off an L98 or LB9 will work on 400sbc ? In other words to you have to buy a special crank for a 377 or will any standard sized 3.48 crank and 5.7 rods work ?
thx,
RP.
thx,
RP.
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
The crank has to be for a 2-piece rear main seal; so a L98 crank won't work. Has to be the earlier model 350 crank.
But apart from that, yes, it works. Use a 400 block, stock 400 pistons, stock 350 crank & rods, and bearing spacers which you can buy from Comp and maybe others.
But apart from that, yes, it works. Use a 400 block, stock 400 pistons, stock 350 crank & rods, and bearing spacers which you can buy from Comp and maybe others.
Supreme Member
Joined: Mar 2001
Posts: 1,346
Likes: 2
From: Monticello, IN USA
Car: 1991 Z-28
Engine: 350
Transmission: T-5 (gonna buy the farm)
If you really wanted to, you can get an adapter to run a 1 pc. in a 2pc. block. Last i looked they were about $130, so it might not be cost effective to reuse an old crank if it needs machine work.
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