kalebm22

iTrader: (2)

i am putting a 2007 lq4 into my 2002 silverado.

my biggest question is can i use this 1998 ls1 front and rear timing cover on it? my truck is 24x and the engine is 58x so i will need the converter box. i just need to know what to look for.

i just have the shortblock that i am building. it had a spun main and rod bearing so i am rebuilding it.

list so far
arp rod bolts
comp ls2 timing chain
new melling lifters
lifter trays
custom cam from lloyd elliott 224/230 .605 115ish
lunati dual valve springs
ported 806 ls1 perimeter bolt heads
44lb delphi injectors
coated callies mmain and rod bearings
stock pushrods and rockers
5.3 intake manifold

any tips?

BashamWS6

iTrader: (8)

should have got a 24x reluctor. those converters are PITA. my friend has one in his camaro... problems with it all the time

kalebm22

iTrader: (2)

I have another crank with the 24x ring but it's an ls1 crank. Can they be changed?

mark21742

You'll need to use a newer front cover with the can sensor in it. The 07 block doesn't have the hole for the cam sensor in the back of it

black00ssFL

iTrader: (24)

All LQ4's have 24x reluctor wheels. Did you verify you have a 58x, or just assuming since it's a post '04 engine? Lq4 blocks are basic gen III block's throughout all their years, the cam sensor is in the back just like a gen III ls1. My LQ4 came out of an '07 hummer, I should know.

mark21742

Then I stand corrected....I did not know that...my lq4 was out of an 03 GMC.

black00ssFL

iTrader: (24)

No problem.

To the OP. Since you have it out for a rebuild...a couple things I'd recommend. Hone out the rod ends .002 with the arp bolts in there to get the proper roundness and try and find some good/used ls2 pistons and have the machine shop install them/re-balance the crank. You'll be fighting a losing battle trying to make good hp with dished pistons and being n/a. I'm planning to one day have f/i on my car, so having the dished piston was ok for me.

kalebm22

iTrader: (2)

I have a whipple supercharger that's why I want 9.5 to 1. I do have lq9 rods and pistons but I don't want to rebalance it

black00ssFL

iTrader: (24)

Gotcha, sounds good. I still recommend resizing the rods for the arp bolts if you haven't set that up yet with the machine shop.

kalebm22

iTrader: (2)

i am waiting on the bolts then the rods and pistons will be on there way to the machine shop also. i am very happy to have a 24x crankshaft tho!
i am now looking for a cheap set of 317 heads if anyone has some. let me know!
also need lunati valve springs
gm lifters
ls6 ported oil pump
timing chain
headgaskets
if anyone has any of this let me know
cam was speced by lloyd at 223/235 .610 .614 115lsa