Curious build

Reply Subscribe

Thread Tools

Search this Thread

Jan 10, 2020 | 11:09 AM

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

Curious build

If you were to build a 6.5k long block for 800whp can you do that? Semi reliable what would be the best Gen 4 iron block throw in your own piston and rods with lsa heads what do you guys think? What would you do

Jan 10, 2020 | 03:00 PM

JetstreamGS

Melting Slicks

Joined: Jul 2014

Posts: 2,121

Likes: 202

I’d use a LS3 block personally.

Jan 10, 2020 | 07:38 PM

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

You think you can build a ls3 to hold 800whp semi reliable for that price?

Jan 10, 2020 | 07:49 PM

JetstreamGS

Melting Slicks

Joined: Jul 2014

Posts: 2,121

Likes: 202

A sbe LS3 can hold that no problem.

Jan 10, 2020 | 09:23 PM

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

I’m looking around but how much does a ls3 short block go for wondering if I should do rods and and pistons in one

Jan 11, 2020 | 09:43 AM

Detoxx03

Safety Car

Joined: Dec 2010

Posts: 4,150

Likes: 379

From: Detroit

For 800rwhp I wouldn’t build it

Jan 11, 2020 | 10:35 AM

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

Just do a cam then?

Jan 11, 2020 | 12:08 PM

Detoxx03

Safety Car

Joined: Dec 2010

Posts: 4,150

Likes: 379

From: Detroit

That’s all I did to mine was put a cam in.

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Joe Kucinski

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Verdad Gallardo

Top 10 Corvettes Coming to Mecum Indy 2026!

Brett Foote

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Michael S. Palmer

10 Revolutionary 'Corvette Firsts' Most People Don't Know

Joe Kucinski

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Michael S. Palmer

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Joe Kucinski

10 Most Common Corvette Problems of the Last 20 Years!

Joe Kucinski

5 MOST and 5 LEAST Popular Corvette Model Years in History!

Joe Kucinski

2027 Corvette Buyer's Guide: Everything You Need to Know!

Joe Kucinski

Jan 11, 2020 | 04:40 PM

VVVROOMTX

Racer

Joined: Aug 2018

Posts: 458

Likes: 96

I'm still SBE LS3 and make 800+ RWHP.

So I'm probably close to 1000 crank. Really no need to build it but honestly if you want to have piece of mind and ability to really turn it up in the future you can put a decently cheap rod and piston in it and then the sky is the limit

Jan 12, 2020 | 11:30 AM

#10

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

I like the idea of the ls3 getting a used block and throw in a stock crank rods and piston or after market crank I wouldn’t be past 850whp for a while wondering if I’d get away with sbe on 91 and meth later I’d like to build a 440 Boosted motor and push it up to 1200whp

Jan 13, 2020 | 08:24 AM

#11

jayyyw

Le Mans Master

Joined: Jun 2015

Posts: 6,318

Likes: 1,102

From: Austin Tx

Stock block 5.3l Gen 4. Pistons, rods, stock crank and a set of as cast TFS 220 heads. Roughly $6500. Capable of 1500hp... <- This is what I am building for my TT setup.

Jan 13, 2020 | 10:40 AM

#12

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

This is what I needed which gen 4 iron block? Are you getting it new or used what rods and pistons you going with?

Jan 13, 2020 | 11:35 AM

#13

jayyyw

Le Mans Master

Joined: Jun 2015

Posts: 6,318

Likes: 1,102

From: Austin Tx

Quote:

Originally Posted by GX427

This is what I needed which gen 4 iron block? Are you getting it new or used what rods and pistons you going with?

I'm doing an aluminum block. It's an LC9. Got it used and using Callies Compstar rods and Wiseco pistons from BTR. 1/2" headstuds and still 4 bolt heads. Going to push it to 1300+ WHP.

Jan 13, 2020 | 11:51 AM

#14

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

Doesn’t 1/2 inch head studs cause a problem with the strength of the block or anything?

Jan 13, 2020 | 12:02 PM

#15

jayyyw

Le Mans Master

Joined: Jun 2015

Posts: 6,318

Likes: 1,102

From: Austin Tx

Nope. Same setup (little stronger rod) is in a 4400lb truck putting down over 1600whp on 42psi.

Jan 13, 2020 | 01:54 PM

#16

VVVROOMTX

Racer

Joined: Aug 2018

Posts: 458

Likes: 96

Quote:

Originally Posted by jayyyw

Stock block 5.3l Gen 4. Pistons, rods, stock crank and a set of as cast TFS 220 heads. Roughly $6500. Capable of 1500hp... <- This is what I am building for my TT setup.

leaving it at stock displacement?

Jan 13, 2020 | 03:55 PM

#17

Summerkruse13

Racer

Joined: Jul 2018

Posts: 403

Likes: 44

From: Burnsville, mn

All sleaved blocks i assume?

Jan 13, 2020 | 04:39 PM

#18

jayyyw

Le Mans Master

Joined: Jun 2015

Posts: 6,318

Likes: 1,102

From: Austin Tx

Quote:

Originally Posted by VVVROOMTX

leaving it at stock displacement?

Yes

Jan 13, 2020 | 04:39 PM

#19

jayyyw

Le Mans Master

Joined: Jun 2015

Posts: 6,318

Likes: 1,102

From: Austin Tx

Quote:

Originally Posted by Summerkruse13

All sleaved blocks i assume?

No, stock blocks

Jan 13, 2020 | 05:11 PM

#20

GX427

Thread Starter

Drifting

Joined: Jun 2019

Posts: 1,588

Likes: 149

From: California

Won’t the 220 heads be an issue with a 5.3 valves hitting the walls? Thought it needed a 4.0 bore or something

Reply Share

First
Prev
1 / 2
Next
Last

Forum Jump