lt1 heads and flow, related info

[grumpyvette]

the second generation small block chevy or LT1/LT4 Generation II LT is a small block V8 engine. Making its debut in the 1992 Chevrolet Corvette, the new LT sought to draw upon the heritage of the ultimate small-block, the 1970 Chevrolet LT-1.

A significant improvement over the original Generation I V8 is the Generation II LT's "reverse cooling" system, allowing coolant to start at the heads and flow down through the block. This keeps the heads cooler, affording greater power through a higher compression ratio and greater spark advance at the same time it maintains higher and more consistent cylinder temperatures.

Some parts from the Generation II are interchangeable with the old Generation I engine. The interchangeable parts include the rotating assembly (crank shaft, pistons, and connecting rods) of the Generation I small block with the one-piece rear main seal. The LT uses a new engine block, cylinder head, timing cover, water pump, intake manifold, accessory brackets, and front-mounted "Optispark" distributor. Engine mounts and bell housing bolt pattern remain the same, permitting a newer engine to be readily swapped into an older vehicle.


read thru these links and takes some notes

http://www.malcams.com/legacy/misc/headflow.htm

http://www.grandsportregistry.com/dyno.htm

http://garage.grumpysperformance.com/index.php?threads/port-speeds-and-area.333/

viewtopic.php?f=52&t=3185

http://www.chevyhiperformance.com/techa ... index.html

http://www.chevyhiperformance.com/techa ... index.html

http://www.customclassictrucks.com/tech ... index.html

http://www.superchevy.com/technical/eng ... index.html

http://www.superchevy.com/technical/eng ... index.html

viewtopic.php?f=52&t=1834

http://www.enginebuildermag.com/Article ... ngine.aspx

http://www.chevyhiperformance.com/techa ... index.html

http://www.gmhightechperformance.com/te ... index.html

http://www.streetlethal.net/camdata/

http://www.trickflow.com/partdetail.asp ... toview=sku

http://www.edelbrock.com/automotive_new ... reme.shtml

http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0453251859


http://cgi.ebay.com/ebaymotors/ws/eBayI ... 0382921937

http://www.shop.speedunlimited.com/p-13 ... -pair.aspx

http://treperformance.com/i-61921-afr-1 ... heads.html