As stated- 5.3 punched to a 5.7, ported 243s, bottom end is stock other than arp rod bolts with the 5.3 crank, ls1 rods and speed pro ls1 pistons. Moly rings are gapped 26/28, currently will be put together with a built 60e and 3600 stall, has 3.91s in the stock 10 bolt which I plan to upgrade whenever it blows. I’m wondering what y’all think this bottom end could take rpm wise and ideas on cams... had a talk with Pat G, and chances are I will be going with the cam he mentioned, although it’s a tad mild for what I am thinking I want out of the car. I currently have a brand new MS3 in my parts pile, then decided to either go custom or go bigger. Pat g recommended TSPs 233/239 when we talked because the top end is about the same as the ms3 I was going with, but produces more torque through the curve, which is a huge drawback of the Magic stick cams. After putting some good thought into the whole car and what I want out of it, I’ve re-though everything and with me making money currently I want to make it a very strong car. I’ve put thoughts into paying him to spec me a full cam, and I’ve also thought about the T-Rex cam, the LG G5x3 cam, and a few other large mean cams. I even heard and came across the LG G5x4, but I don’t know the specs . (Can someone send me the specs of this cam ?!?!) The car also will see nitrous, probably 150 tops with the current bottom end.. so in conclusion I’m wanting a very nitrous-friendly cam but also a cam that will scream n/a. I plan to have someone like MAD or Greg Good in Houston port my heads, I have all the regular Bolton’s and the engine will be breathing through TSP 1 7/8 headers and 3 inch duals. A LS6 intake will top the engine for now, with full intentions of going to a MSD or FAST. Drivability/idle isn’t a concern though it will be street driven mostly. Looking for a very hot street/strip car that will keep up with all these fast cars here in central Texas. What do y’all think?

 

I'm building a nitrous LS370/LS3 that Patrick will be tuning for me at some point. One day I'll quit spending money on this engine and get my 01 back down there. Great guy! Highly recommend him.

 

Agreed, he’s extremely knowledgeable on what he does and he will Be tuning my car.

 

227/237 on a 113 or similar. Use cam motion lobes.

My thinking is we already know when it will make peak hp, around 6300 so we optimize Ivc around that and extend exhaust duration to bleed off a bit of torque (for nitrous) and carry up top better.

 

BTR stage 3 Ls1/ls2 is also a good choice imo.
231/242 .617"/.592" 112+2