Lq4 with 243 heads?
#1
Lq4 with 243 heads?
I got a very budget build and over winter I want to get more power out of my summer daily driver.My lq4 is in great shape and low milage stock with ls6 intake,228r cam 112lsa,truck maf,all else stock.Dyno numbers in sig.
Im picking up 243 heads to raise compression and getting longtube headers and make a custom y pipe,maybe new ls7 lifters/trays.My question is about the heads,Ill be reusing the rockers/springs/valves from my 317 heads with the pac springs.Can I reuse the tsp 7.4 hardened pushrods aswell?What head gasket is recommended and if I decide to mill the heads(.030) and do some porting will I need new pushrods again?I want to reuse what i have since I only put 100km on it this year since being installed.Im not looking to make a ton of power..just crack the 400rwhp mark and have a snappy response.
Any advice is welcome.
Im picking up 243 heads to raise compression and getting longtube headers and make a custom y pipe,maybe new ls7 lifters/trays.My question is about the heads,Ill be reusing the rockers/springs/valves from my 317 heads with the pac springs.Can I reuse the tsp 7.4 hardened pushrods aswell?What head gasket is recommended and if I decide to mill the heads(.030) and do some porting will I need new pushrods again?I want to reuse what i have since I only put 100km on it this year since being installed.Im not looking to make a ton of power..just crack the 400rwhp mark and have a snappy response.
Any advice is welcome.
#4
#6
Thats what I thought..317/243 heads all else being the same except chamber size.If I dont mill the heads the I can literally reuse everything from my 317 heads,and replace the gaskets with new gm gaskets for the 6.0
How much gain can I realistically expect from just the stock 243 and 1 3/4 lts? Im expecting a healthy 30-40whp
How much gain can I realistically expect from just the stock 243 and 1 3/4 lts? Im expecting a healthy 30-40whp
Trending Topics
#15
formerly twolow02fransen (2014-1-2)
iTrader: (27)
Join Date: Mar 2007
Location: mASSHOLE
Posts: 2,750
Likes: 0
Received 0 Likes
on
0 Posts
truck put down 390rwhp 375rwtq on a mustang dyno threw a auto runs awsome im very happy with it also advanced inductions ported my heads i just did a TBSS intake manifold swap so it should be well in the 4xx range. im not sure what length the pushrods are since advanced inductions setup the whole package
#17
It should be on the button 400rwhp.Right now having my stock manifolds and having clogged cats mixed with a poor tune has me leaving alot on the table.Headers with 3inch y pipe to my 3inch catback,243 heads with slight port work/milled,build a true cold air intake,might need new injectors and might port the throttle body should get me there after a new tune.If I hit 399.9rwhp Id be pissed to be that close lol