39940 BBC exhaust manifold casting? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Fast68Chevy* · 08-31-2002, 04:27 PM

dos anyoine have a way to loof up or find out anything at all about 39940 exh. manifold casting number for 454 around '74 ?

thanks for anything.,

HvyChevy454 · 08-31-2002, 04:39 PM

this is what i got;
3994045 1973-75 LH 454 police

*Fast68Chevy* · 09-05-2002, 01:57 AM

is it common to see last two numbers of actual number not be cast onto manfold on BBC manifolds ??

thanks heavy

08-31-2002, 04:27 PM	#1
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	39940 BBC exhaust manifold casting? dos anyoine have a way to loof up or find out anything at all about 39940 exh. manifold casting number for 454 around '74 ? thanks for anything.,

08-31-2002, 04:39 PM	#2
HvyChevy454 Slowly getting CRSS... Join Date: Jul 2001 Location: Lutz, Florida Posts: 656	this is what i got; 3994045 1973-75 LH 454 police __________________ -Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Speak Softly and Carry A Big Block... There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti

09-05-2002, 01:57 AM	#3
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	is it common to see last two numbers of actual number not be cast onto manfold on BBC manifolds ?? thanks heavy



Register or Log In To remove these advertisements.