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Paul Ceasrine · 10-22-2011, 11:38 AM

Gene,

Differences between the 400/366 HP 'Ram Air II' and the other
400 engines.

'Ram Air II' 400/366 HP,, @ 5400 RPM (Tach red-line)
400/350 and 400/360 HP,,,,,@ 5100 RPM (Tach red-line)

The 400/366 HP 'Ram Air II" , 4-Bolt main block, (casting #9792968)

The 'Ram Air II' utilized;
* Nodular Crankshaft
* Special Arma-Steel connecting-rods
* Forged pistons
* Re-designed cylinder heads (w / round port exhaust)
* High-lift camshaft
* Up-graded valve train
* Re-jetted carburetor
* Revised distributor curve
* Stream-lined exhaust manifolds
* Ram-Air induction (dealer installed)
* 4.33 Gears
* M-21 Close-Ratio 4-Speed or TH-400 Automatic.

10-22-2011, 11:38 AM	#12
Paul Ceasrine VIP Member Join Date: Apr 2009 Posts: 2,546 Likes: 0 Liked 10 Times in 10 Posts	Re: 1968 Pontiac GTO Gene, Differences between the 400/366 HP 'Ram Air II' and the other 400 engines. 'Ram Air II' 400/366 HP,, @ 5400 RPM (Tach red-line) 400/350 and 400/360 HP,,,,,@ 5100 RPM (Tach red-line) The 400/366 HP 'Ram Air II" , 4-Bolt main block, (casting #9792968) The 'Ram Air II' utilized; * Nodular Crankshaft * Special Arma-Steel connecting-rods * Forged pistons * Re-designed cylinder heads (w / round port exhaust) * High-lift camshaft * Up-graded valve train * Re-jetted carburetor * Revised distributor curve * Stream-lined exhaust manifolds * Ram-Air induction (dealer installed) * 4.33 Gears * M-21 Close-Ratio 4-Speed or TH-400 Automatic. Last edited by Paul Ceasrine; 10-22-2011 at 11:44 AM.