[Manta72]

Am currently building up a 1971 Opel Manta 1900 and am now working on the engine. I got rid of the 1971 1900 engine and put in place a 1981 1900 engine from an Ascona B (12 bolt cylinder head vs. 10 bolt for the older motor).

Since I am rebuilding the motor, I will be boring it out to 95mm using Kolbenschmidt pistons (net effect = 2.0L). Ported head, big valves, GTE camshaft, GTE solid lifters, double valve springs, Steinmetz manifold with 2 X 40 DCOE Webers, Petronix conversion, Mallory Hyfire VI with Promaster Coil, Steinmetz header, and topped of by the factory aluminum valve cover.

All this will pass through a 9" clutch then a ZF S5-18/3 5-speed gearbox and finally a 3.44 rear end with a POSI unit and ATS 13X7 wheels.

I hope I got this combination correct.....

 

[neuropel]

Those are some nice parts! Post some pics so we can see it as it progresses.

 

[Manta72]

ZF Gearbox

These are the photos of the ZF 5-speed gearbox....

 

[Manta72]

GT/E Camshaft

GT/E Camshaft and solid lifters

 

[Manta72]

Carburators

These are the photos of the Weber DCOE Carburators and Steinmetz manifolds. They are currently wrapped inlastic since I just had them cleaned and still don't want them exposed to moisture.

 

[BetaCarotene]

what kind of power do you hope for this motor to put out?

 

[Manta72]

Power

If I can get around 130 hp to 140 hp from this combination then I will be very happy....

 

[jordan]

Those are some very nice parts you have there.

 

[BetaCarotene]

what are the specs on the GT/E cam?

 

[Manta72]

GT/E Camshaft

Sorry but I do not know the exact specifications of the GT/E camshaft.

 

[Manta72]

Manta A is almost finished.... Have some photos of the car now....

 

[Manta72]

Just took the car out for a shake down drive last weekend and car felt really good. Very tight. Please note that the steering wheel will be replaced with a MOMO Jackie Stewart model.

Have also installed the ATS wheels now since this photo was taken. Will upload some outdoor shots soon.

Car has to go back to my electrician for some debugging...

 

[rekord_1900]

These are the photos of the Weber DCOE Carburators and Steinmetz manifolds. They are currently wrapped inlastic since I just had them cleaned and still don't want them exposed to moisture.

where did buy the steinmetz manifolds?

 

[g_s]

You have a RollBar inside but you have also an airCondition Unit!!!
Strange Combination

 

[badkuneho]

any aupdates on ur manta sir MANTA72? im also from philippines... maybe we could meet and maybe u can help me restoring my manta-a 1972 model too...