carbd lq9 with 799s compression fear?
10-24-2011, 09:48 PM
#1
carbd lq9 with 799s compression fear? just picked up 6.0 lq9 shortblock wanted to know if stock 799s would work with pump gas or would the 317s would be better if it matters horsepower goals are about 450 flywheel na. no cam selected yet wanted to get the heads out of the way first but open to suggestions. stock bottom end with vic jr intake on the way any and all suggestions will be considered as im coming from sbc to ls for the first time
10-25-2011, 04:16 AM
#4
No worries 799's came on LS2's you have an iron block LS2 almost 11.1 compression it will run on 93 octane pick a cam with a fair amount of overlap and you can even mill the heads a little and still get away with running premium
10-25-2011, 12:50 PM
#6
I have an LQ9 with 243 heads and it comes out to 10.88 - 10.92:1 static depending on if you use 6.0 or 6.2 liter GM head gaskets. With my small 222/224 cam and a Victor Jr. it is fine with 27 degrees of timing on premium. My dynamic compression ratio is 8.43.
10-25-2011, 08:30 PM
#7
thanks for the input yea i was looking at your build and your first setup is kinda what im looking for but im going 700r with 373s but your pulls durn well for that size vehicle thanks for putting it up it makes it a lot easier to see what i will need for my little ls swap 73 chevy nova
