LS1TECH - Camaro and Firebird Forum Discussion

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- Generation III Internal Engine (https://ls1tech.com/forums/generation-iii-internal-engine-5/)

- - 853's vs. 243's (https://ls1tech.com/forums/generation-iii-internal-engine/851545-853s-vs-243s.html)

SSClone

Jan 24, 2008 05:27 PM

853's vs. 243's

My 99 SS camae with 853 casting heads from the factory, I'm about to install a Magic Stick 3 from TSP. I have a chance at getting some stock 243's no port for dirt cheap. Is the hp worth swapping these 2 heads stock for stock?

RedRocketZ28

Jan 24, 2008 05:32 PM

I would buy them if they are dirt cheap.

Jpr5690

Jan 24, 2008 05:37 PM

Just Pick Up A Set Of Tsp Stage 2.5 853's And A Cam For Like $900

5_02ls1

Jan 24, 2008 05:37 PM

from what i have read the 243s are worth 15-20rwhp over the stock heads...and with that ms3 id say maybe a lil more....

Shawn @ VA Speed

Jan 24, 2008 05:39 PM

get the 243's,they make great power

VIPRETR2

Jan 24, 2008 06:56 PM

I picked up 27rwhp and 20rwtq over 241 heads with unported 243s.

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