Engine build.... advice.... and info...
Thread Starter
Teching In
Joined: Dec 2011
Posts: 2
Likes: 0
Engine build.... advice.... and info... hey to the forum i am new to ls1tech. my name is chris. i have a 99 z28 t56. 204k on the clock. spun rod bearing.
ok engine rebuild:
New factory ls1 crank
complete rebuild lower end all factory (the numbers i want i have been reading stock bottom end is all i need for now) Wink Wink the old lady might have had a hand in that. with a factory bottomend i can tell her i rebuild it to stock. wink wink.
Heads factory casting 806
64cc chamber
287 cfm flow on intake @.600 lift
208 cfm flow on exhaust @.600 lift
polished valves and comp cam hardened push rods 7.400
for now a LS1 GM Hot cam
Hot Cam specs 219/228@.50 .525/.525 lift 112 LSA
here lays my question
isky roller lifters
0 offset and intake and exhaust they are 3.040 tall
with the lifters do i need a shorter push rod or would this just make the cam better or worse. i have searched about the lifters length and cant find anything solid on what way to go.. it might be a dumb question but i also cant find what a factory lifters length is. when i get home this weekend i will mic a factory one and see but hoping to get a answer sooner. thanks to everyone in advance
Chris
ok engine rebuild:
New factory ls1 crank
complete rebuild lower end all factory (the numbers i want i have been reading stock bottom end is all i need for now) Wink Wink the old lady might have had a hand in that. with a factory bottomend i can tell her i rebuild it to stock. wink wink.
Heads factory casting 806
64cc chamber
287 cfm flow on intake @.600 lift
208 cfm flow on exhaust @.600 lift
polished valves and comp cam hardened push rods 7.400
for now a LS1 GM Hot cam
Hot Cam specs 219/228@.50 .525/.525 lift 112 LSA
here lays my question
isky roller lifters
0 offset and intake and exhaust they are 3.040 tall
with the lifters do i need a shorter push rod or would this just make the cam better or worse. i have searched about the lifters length and cant find anything solid on what way to go.. it might be a dumb question but i also cant find what a factory lifters length is. when i get home this weekend i will mic a factory one and see but hoping to get a answer sooner. thanks to everyone in advance
Chris
TECH Fanatic
Joined: Jul 2011
Posts: 1,074
Likes: 2
I would definitely get a better cam, the Hot cam is a good cam but there is a load of better ones out there for a decent price. As for everything else I would just bay attention to the bearing clearances cause you really don't want to go any more than .002 on the ls1's. I have always preferred to check my pushrod length before installing any that way I am 100% sure on the length and lifter preload. Other than that it sounds like you have a good build going.
