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More Power for 4,9 L


zuzzzi

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Hi, I´m Marco from Austria. I´ll rebuild a 4,9 L Engine for my Cadillac Seville STS 1992 (see Marco´s 92 in Peoples Cars).

Now the Engine is completly disassembles. So what kind of Hardware can i install to get more Horspower?

I´m thinking about bigger Pistons, but i dont know how much Horsepower get with this parts, because the Cost´s are 700 Euro.

What is with a bigger Trottle inlet?

Now i will polish the Cylinder Haeds and the Intake Mainfold.

Does anybody know to get more Horspower from this Engine, or have some Links to Buy Racing Hardware??

Best Reagrds

Marco

PS: Sorry for the BAD English

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Marco, I am not sure if you can bore the cylinders over successfully. The 4.9 is sleeved and you would be thinning out the sleeve walls and disrupting their structural stability. (someone confirm that thought).

The engine remained pretty much untouched and with the same horsepower from 1991 to 1995.

The only thing I thing you might be able to do is open up the exhaust by installing a free flowing exhaust and possibly custom headers. See this thread:

http://www.cadillacforums.com/forums/ht410...e-upgrades.html

I can't vouch for this but, search down for Cadillac 92 Eldorado:

http://www.electricsupercharger.com/testimonials.shtml

Good Luck, Mike

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Hi, I´m Marco from Austria. I´ll rebuild a 4,9 L Engine for my Cadillac Seville STS 1992 (see Marco´s 92 in Peoples Cars).

Now the Engine is completly disassembles. So what kind of Hardware can i install to get more Horspower?

I´m thinking about bigger Pistons, but i dont know how much Horsepower get with this parts, because the Cost´s are 700 Euro.

What is with a bigger Trottle inlet?

Now i will polish the Cylinder Haeds and the Intake Mainfold.

Does anybody know to get more Horspower from this Engine, or have some Links to Buy Racing Hardware??

Best Reagrds

Marco

PS: Sorry for the BAD English

ASG used to convert the 4.9 into their ASG 5.0 setup (not sure if they still do it). I've dealt with this group in the past and they were a pleasure to deal with.

http://www.angelfire.com/stars/mycaddy/asg.htm

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