1970 ls5 454 (Full Version)

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1970 ls5 454

70 canam BB -> 1970 ls5 454 (7/16/2008 11:07:15 PM)
does anyone know the actual hp/tq numbers for this engine. i know all the literature states 390 hp/ 500 tq. is that correct or is it higher/lower. what components came on the engine initially all i know was it was an iron block iron head possible 2 or 4 bolt main with a holley or rochester q-jet. any info will be greatly appreciated. thanks in advance everyone

Texas Jim -> RE: 1970 ls5 454 (7/17/2008 7:53:30 AM)
I only know that it was 10.25 to 1 compression ratio and 390 HP and it was the first year for the 454 in the ''Vette. Down to 8.5 and 365 hp for ''71.

old mac -> RE: 1970 ls5 454 (7/17/2008 6:06:40 PM)
I don''t want to give you bad info, so you can go to the link & check it out for yourself - http://www.auto.howstuffworks.com/1970-corvette/.htm In case the link doesn''t work, I''m finding it with hydraulic cam, small valves & small port cylinder heads. Came w/heavy duty battery. 454/390 for Automatic, 454/460 HP @ 5600 4-speed, Torque 490@3000

73shark -> RE: 1970 ls5 454 (7/17/2008 6:59:30 PM)
LS-5 was 390 hp @4,800 and 500 ft-lb @ 3,400. Q-jet, hydraulic cam, 10:1 CR LS-7 was 460 hp but never was released. From Corvette Bible.

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