CCM GT-40p long bocks

daveGT · 03-09-2001, 01:53 PM

Greetings everyone, I'm a newcommer here. Great site! Anyhow, I'm replacing my tired 302 from my '88 GT. I'm thinking seriously about getting Central Coast Mustang's GT-40p long block. Has anyone out there had any experience with their set-up: GT-40p heads, B-303 cam? They claim 320 flywheel hp, sounds reasonable with the right induction. Anyone run a dyno test or timeslips? Decent mpg and idle with this combo? Thanks MW!

84_GT350 · 03-09-2001, 08:12 PM

I've been looking into their 331 long blocks. They look like they're good quality. The GT-40P engines use totally different parts, but it seems like it'd be a good buy. I've never run one though.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

withamc · 03-09-2001, 10:11 PM

I just dyno'd mine today. I put a Crane 2031 in it instead of a B cam, and it puts out 277 RWHP, which works out to around 330 HP at the flywheel, I think. They've been real helpful too.

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86 GT, GT40P heads, Crane 2031, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, Groundpounder subs and lower control arms.

03-09-2001, 01:53 PM	#1
daveGT Registered Member Join Date: Mar 2001 Location: Sarcoxie, MO, USA Posts: 80	CCM GT-40p long bocks Greetings everyone, I'm a newcommer here. Great site! Anyhow, I'm replacing my tired 302 from my '88 GT. I'm thinking seriously about getting Central Coast Mustang's GT-40p long block. Has anyone out there had any experience with their set-up: GT-40p heads, B-303 cam? They claim 320 flywheel hp, sounds reasonable with the right induction. Anyone run a dyno test or timeslips? Decent mpg and idle with this combo? Thanks MW!

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03-09-2001, 08:12 PM	#2
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	I've been looking into their 331 long blocks. They look like they're good quality. The GT-40P engines use totally different parts, but it seems like it'd be a good buy. I've never run one though. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

03-09-2001, 10:11 PM	#3
withamc Registered Member Join Date: Aug 2000 Location: Thousand Oaks, CA Posts: 396	I just dyno'd mine today. I put a Crane 2031 in it instead of a B cam, and it puts out 277 RWHP, which works out to around 330 HP at the flywheel, I think. They've been real helpful too. ------------------ 86 GT, GT40P heads, Crane 2031, 1.7 RR's, Cobra intake, 65mm TB, 73mm Vortech, 24# injectors, MAC GT40P headers, 2-1/2" BBK H-pipe (w/cats), Flowmasters, 3.55s, Groundpounder subs and lower control arms.