Anyone With A 5.3 Silvy And Lq9 Heads

Reply Subscribe

Thread Tools

Search this Thread

Apr 22, 2004 | 01:24 PM

01Blackerado

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Mar 2004

Posts: 1,598

Likes: 0

From: Fairfax, VA

Anyone With A 5.3 Silvy And Lq9 Heads

Will these heads fit and what happens with HP, TRQ, and compression???

Apr 22, 2004 | 01:31 PM

whitt1

TECH Junkie

Joined: Mar 2002

Posts: 3,019

Likes: 1

From: memphis tn

The chambers are to large for a NA 5.3,the LQ9 heads would yeild about a 8.5:1 compression ratio and cause a big horsepower loss.

Apr 22, 2004 | 01:47 PM

01Blackerado

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Mar 2004

Posts: 1,598

Likes: 0

From: Fairfax, VA

Now with them being force induced would that change the outlook on it

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

Finalizing build

The_W

GM Engine & Exhaust Performance

Oct 28, 2015 09:00 PM

cam help

elpyro89

GM Engine & Exhaust Performance

Jul 28, 2015 05:51 PM

Custom ground 4.8/5.3 cam

06 4.8

GM Parts Classifieds

Jul 15, 2015 07:17 PM

LQ9 Bolt ons (ls6 heads?)

Aboss

GM Engine & Exhaust Performance

Jul 9, 2015 10:28 AM

Lets talk Valve Springs. Experts please come in.

07NBSChevy

GM Engine & Exhaust Performance

Jul 8, 2015 07:27 PM